a report later found a series of errors ranging from faulty radios and alarms to secret service fatigue and understaffing. that same year another fence-jumper was tackled by secret service dogs. the latest incident comes a week after director joe clancy left the agency. he had been brought out of retirement to stop the breaches. the fence is about seven feet tall. the government plans to build a new one nearly 12 feet tall but construction won't even begin until next year. as for the latest jumper, jonathan tran, a judge today ordered him released pending trial, but anthony, he'll have to wear a gps monitor and undergo a mental health evaluation. >> chip reid, thanks, chip. the "cbs overnight news" will be right back.

as veterans, we committed to protect our country. we served and sacrificed for the things that mattered most. those experiences shaped our lives. now we're husbands, wives, parents, and friends. and sometimes we forget that the biggest challenge can be asking for support. the veterans crisis line is here for veterans. dial 1-800-273-8255 and press 1. it matters.

now to some potentially dangerous weather. blizzard warnings are going up overnight in the east from philadelphia to new york and boston. a nor'easter could bring as much as two feet of snow and whiteout conditions to the region. the airlines have already canceled more than 6,000 flights. new york city's elevated subway service will be suspended before dawn. school closures tomorrow include philadelphia, new york city, and boston. we have team of reporters covering the storm. first eric fisher, chief meteorologist at our boston station wbz. eric? >> reporter: anthony, good evening. a very powerful and disruptive nor'easter in mid-march up and down the eastern seaboard. you see blizzard warnings in bright red from pennsylvania stretching all the way up into maine. that's where a combination of strong winds and heavy snow will create some poor travel conditions as we head through tuesday.

here's a look at the timeline. moving its way up the coast, tricky part of the forecast is the rain/snow line arrives right on the 95 corridor, right through the big cities, d.c., philly, and boston. that means the trickiest forecast where the most people live. big snow off to the north and west moving quickly and departing by wednesday morning. here's a look at the snow totals. again, the bigger snow up to two feet just north and west of most of those major cities. here's a look at a few of them. boston at 6 to 12. in the new york area at 12 to 18. philadelphia at 8 to 12, and d.c., a few inches of snow but much bigger totals just west of all these cities. and the wind is part of the story. as this deepens and undergoes bombogenesis, we'll see gusts top 60 miles per hour. so power outages will be coming along with this, as well as some coastal flooding. anthony? >> eric fisher, thanks. michelle miller in cleveland has a look at preparations for the big storm. >> reporter: road crews are working 12-hour shifts, racing to stay ahead of the massive

to two feet of snow. they've already prepped roads with a chemical snow melt. did you really think you were going to get away scot-free? >> i was hoping. >> reporter: and this afternoon rich deszcz loaded up his salt truck to head out on his ten-mile route. >> the salt on the road from the brine will melt the snow by the time we get out there. it's going to help us out. >> reporter: an arctic blast has surfaced in recent days from the midwest to the east coast. this house in webster, new york, was entombed in ice. the chill is far cry from the mild winter so far. the state of ohio has spent just $63.3 million dollars on its snow and ice operations budget, $15 million less than a year ago. it's been at least 146 years since chicago has seen no measurable snowfall in january or february, but that's expected to change tonight with at least five inches here.

the cold spell is threatening the cherry blossoms in washington, d.c. the trees are on the verge of peak bloom. bitter cold and wet, heavy snow sitting on the flower buds could kill them. and with a little bit more than a week before spring, anthony, this is not even the latest blizzard the hit ohio. last year nearly a foot of snow fell in the second week of april. >> michelle miller in cleveland, thanks, michelle. the storm is already causing trouble for travelers. transportation correspondent kris van cleave is at laguardia airport in new york. >> it's my father's birthday, and it's a pain in the neck. you know, it's making me so upset. >> reporter: this woman is like thousands trying to beat winter's brutal last gasp. she has to get out today to be with her family to celebrate in time. >> i will have to wait maybe until thursday, or if not maybe i n'

>> reporter: she's far from alone. airlines are pulling their planes out of the storm's path tonight, and flights are expected to be scarce up and down the east coast tomorrow. yvonne reese is hoping to get home to ohio. >> i've been here in a blizzard in '92. i don't want to do it again. >> reporter: are you worried about getting stuck? >> yeah. i'm worried we're going to get canceled here because of ohio's weather and we're going to get stuck here. >> reporter: amtrak's busy express trains won't travel between new york and boston tuesday. today it was business as usual, a relief for christina sherman. >> we switched the train a day earlier so we could make it before the snow. >> reporter: drivers gassed up to prepare, but the roads could be impassable. new york city will be under a state of emergency starting at midnight, just a few hours before the first snow is predicted. the city's mayor, bill deblasio. >> change your plans. get off the streets. obviously closing schools. that's going to take a lot of pressure off the roads right there weie

>> reporter: and those departure boards are filling up with a lot of red, and red means canceled, anthony, the people behind us here among the last folks who are going to get out of this airport before the snow brings it to a grinding halt. >> kris van cleave at laguardia. thank you, kris. overseas, iraqi troops backed by the u.s. have trapped isis forces inside western mosul. the terror group had held iraq's second largest city for nearly three years. the fighting to liberate it is fierce and holly williams is there. >> reporter: au.s. coalition air strike and another one pulverizing an isis fighting position. [ explosions ] brigadier general abbas al jbouri confirms they hit their target little more than a city block away. >> killed more than 15. >> reporter: that means your men can now push forward another 200 yards or so?

then it's the job of these iraqi forces to clear another neighborhood. they're the ones risking their lives to eradicate isis. and after four months of fighting, they have them surrounded. but instead of surrendering, isis militants are still lobbing mortars. and on every street there's more evidence of the chaos they've reeked on this city. this charred and shattered building is all that's left of mosul's museum. the exhibits nowhere to be seen. celebrated the desecration in a propaganda video. artifacts from one of the world's oldest civilizations, unislamic according to a gang of violent fanatics. luckily some were apparently plaster replicas, but others were genuine and invaluable. these are all the signs saying

what used to be here. vandalism and hatred inflicted by the so-called islamic state on this majority muslim city. what do they believe in? >> i don't know. they are crazy. just destroy them. just against human. >> reporter: just destruction? >> yeah. that's all. >> reporter: iraqi forces are now on the edge of mosul's historic old city, anthony, where maze of narrow alleyways could mean the toughest urban fighting they've faced so far. >> holly williams on the front lines in iraq. thanks, holly. coming up next, a two-year-old girl could be first to die in this country from a burning hoverboard. where's the car? it'll be here in three...uh, four minutes. are you kidding me? no, looks like he took a wrong turn. don't worry, this guy's got like a four-star rating, we're good. his name is randy. that's like one of the most trustworthy names! ordering a getaway car with an app? are you randy? that's me!

surprising? how much money erin saved by switching to geico. everybody comfortable with the air temp? i could go a little cooler. ok. fifteen minutes could save you fifteen percent or more.

i'm about to pop a cap of "mmm fresh" in that washer with unstopables in-wash scent boosters by downy. because this scent lasts up to 12 weeks, which is longer than any relationship i've ever been in. freshness for weeks! ♪ i don't think that's how they're made. klondike hooks up with tasty flavors... the best ice cream bars ever conceived. cough doesn't sound so good. take mucinex dm. i'll text you in 4 hours when your cough returns.

looks like i'm good all night! some cough medicines only last 4 hours. but just one mucinex lasts 12 hours. let's end this. a young girl in pennsylvania is believed to be the first person in this country killed by a fire that started in a hoverboard. jericka duncan is in harrisburg. >> reporter: when this raging fire tore through this pennsylvania home friday night, several children could not get out. >> we need an additional line. we still have people trapped in the upper floors. >> reporter: the fire killed two-year-old ashante hughes and seriously injured two others. the surviving children told officials the blaze was started by a hoverboard plugged into an outlet. harrisburg fire chief brian enterline. >> i heard some sizzling and crackling in the hoverboard, and

in flames. >> reporter: lieutenant dennis devoe, a 21-year veteran of the fire department, was killed in a traffic accident while responding to the fire. last year the consumer product safety commission recalled more than 500,000 hoverboards by eight different manufacturers. in some cases the lithium batteries can overheat or catch fire. since 2015, the commission has investigated more than 60 fires caused by malfunctioning hoverboards. shaka crawford was greeted with a warm hug from a neighbor as she stood outside of her fire-ravaged home, a small memorial is now growing in memory of her two-year-old granddaughter. she had a stern warning for anyone who has a hoverboard in their home. >> get rid of 'em. get rid of 'em. get rid of 'em. >> reporter: the two girls who were hospitalized as a result of

this fire are expected to be released tonight according to the family. anthony, the consumer product safety commission says if you own a hoverboard that is on their recall list, it's not too late to return that hoverboard and get a refund. >> jericka duncan with some important advice tonight. thanks, jericka. still ahead, an irresistible force turned them into immovable objects.

two former penn state officials pleaded guilty today to misdemeanor child endangerment charges in the jerry sandusky sex abuse scandal. former athletic director tim curley and former vice president gary schultz did not report sandusky to police. each could face five years in prison. sandusky, the former assistant football coach, is serving a long prison term for molesting ten boys. 35,000 lined up to start a bike race yesterday in cape town, south africa, but mother nature wasn't having it. the riders took off and were suddenly blown off their bikes by winds that topped 60 miles per hour. it was a struggle just to stand up. the race was called off.

up next, cactus flowers. spring in colorful blo

finally tonight, as the midwest digs out of a snowstorm and the northeast prepares for a blizzard, spring is blooming in the west in living color. here's john blackstone. >> reporter: when wild flowers bloom like this in the southern california desert, it's a sight to treasure. >> this is good.

>> reporter: visitors to the ana borrego state park east of san diego are witnessing the desert at its most colorful. it's a rare display thanks to rain this winter that finally broke california's drought. >> quite a variety that's come up. >> reporter: steve bier has been a park ranger here for 15 years. >> you wonder, where did the yellows and the purples and the whites come from. >> reporter: ana borrego received double its annual rainfall, enough to bring life to seeds lying on the desert floor for years. these seeds have waited all that time? >> there are some that have been waiting for decades. >> reporter: what kind of respect does it give you looking out at the desert? >> this is beautiful. you can not look at this and imagine that someone could come out and say nothing survives in the desert. >> reporter: but it's also true that nothing survives for long in the desert. and then, as well, one day you'll come out and this will be gone. >> it will all be .

>> reporter: the wild flowers are already being consumed by hungry caterpillars, also having their brief moment to thrive in this harsh landscape, and temperatures climbing over 100 will quickly wilt what the caterpillars leave behind, but for a few weeks, blossoms are everywhere. this is certainly an example of the desert in bloom. >> it is indeed. >> reporter: for now in this desert, even a cactus is much more than its spikes. >> it takes your breath away, it really does. >> reporter: john blackstone, cbs news, ana borrego state park. >> and that's the "overnight news" for this tuesday. for some of you the news continues, for others check back later for the morning news and of course, "cbs this morning." from the broadcast center in new york city, i'm anthony mason. -- captions by vitac -- www.vitac.com

this is the "cbs overnight news." twok the "overnight news." i'm tony dokoupil. it looks like the end of the line for islamic state fighters in the iraqi city of mosul. forces are closing the noose around the final neighborhoods held by the jihadis and the last escape route has been cut. still, there are hundreds of thousands of civilians under the gun. holly williams is on the frontline. >> reporter: the u.s. coalition air strike, and another one, pulverizing an isis fighting position. [ explosions ] general abbas al jbouri confirms they have hit the target. >> killed more than 15.

>> reporter: that means your men can now push forward another 200 yards or so? then it's the job of these iraqi forces to clear another neighborhood. they're the ones risking their lives to eradicate isis. and after four months of fighting, they have them surrounded. but instead of surrendering, isis militants are still lobbing mortars. and on every street there's more evidence of the chaos they've reeked on this city. this charred and shattered building is all that's left of mosul's museum. the exhibits nowhere to be seen. isis smashed them and then celebrated the desecration in a propaganda video. artifacts from one of the world's oldest civilizations, unislamic according to a gang of violent fanatics. luckily some were apparently plaster replicas, but others were genuine and invaluabl

these are all the signs saying what used to be here. vandalism and hatred inflicted by the so-called islamic state on this majority muslim city. what do they believe in? >> i don't know. they are crazy. just destroy them. just against human. >> reporter: just destruction? >> yeah. that's all. >> reporter: iraqi forces are now on the edge of mosul's historic old city, anthony, where a maze of narrow alleyways could mean the toughest urban fighting they've faced so far. at the white house, sean spicer says "president trump doesn't personally think president obama personally wiretapped his phones. major garrett reports. >> reporter: president trump again ignored questions about

a week-old claim on twitter that president obama tapped his phones at trump tower. white house press secretary sean spicer. >> i think if you look at the president's tweet, he said very clearly "wiretapping" in quotes. >> reporter: that according to spicer could mean any type of surveillance. spicer said the president's tweets spoke for themselves. the first and second did put "wiretapping" in quotes, but the third and fourth did not, and fourth accused mr. obama of a crime similar to watergate, calling him bad and sick. spicer said the president has not directed the justice department to turn over evidence requested by the house intelligence committee. so you're saying the president doesn't have an obligation to provide any -- >> i'm not saying that at all. there is no question that there have been an abundance of reports regarding surveillance and other type of activities that occurred during the 2016 election. >> and that leads us to believe the president's only evidence are these reports.

to believe that. >> reporter: white house councilor kellyanne conway also says she has no evidence of wiretapping. >> there are many ways to surveil each other now. unfortunately. >> reporter: do you believe that was -- >> there was an article that talked about how you can surveil someone through their phone, certainly through their television sets, any number of different ways, and microwaves that turn into cameras, et cetera. >> reporter: in another interview, conway clarified. >> i'm not inspector gadget. i don't believe people are using their microwave to spy on the trump campaign. however, i have -- i'm not in the job of having evidence. the national debate over medical marijuana could now be going to the dogs. a lot of pet owners are choosing cannabis to treat their ailing animals. mireya villarreal has this story from los angeles. >> reporter: pet owners who can no longer find pain relief for

to products just by this. they swear by the results, but this is not regulated and there's no proven results, which means this product right here is finding sol d ining some dogged. it's dinnertime for brutus and kailee. but they're also fend something extra, a dose of liquid cannabis. he says it's helped alleviate kailee's anxiety and brutus' chronic pain after surgery for a pit bull attack. >> using cannabis has made a big difference. >> reporter: are you seeing an impact in their life? >> a huge impact. 13-year-old dogs are going to have more issues with mobility and his quality of life is just so much more enjoyable. >> reporter: some people will say, however, that you are drugging your dog. >> okay. i beg to differ. i feel like this is botanical. this is plant medicine. >>t'

the animals. >> reporter: alison got into the medical marijuana field about 20 years ago. her focus has shifted from humans to animals. >> we use the same cannabis extract we do in humans. and i've seen better results in the animals than i am in the humans. >> reporter: she says her products does for animals the same thing medical pot does for humans, alleviates pain, even battles cancer. >> we don't have any actual peer reviewed studies for the use of those compounds on pets. >> reporter: veterinarian ken polaski says as more states legalize marijuana, cases of pets getting sick for ingesting marijuana are spiking. in we see pets that come in with

the gamete from being fairly mild to severe. unfortunately, there are instances where there have been fatal overdoses. >> reporter: although such deaths are rare, he says they often cause sensory overload, lack of coordination and tremors. >> if you use small amounts and follow the instructions, it does not get the animal high. >> reporter: she says because pet products have fewer chemicals, the animal won't get sick. as for brett hartman, he hopes lawmakers clear the way for studies which could confirm the safety of cannabis for pets. >> i'm looking forward to common sense legislation, which is going to be based on facts. >> reporter: if people want to give pot to their pets, they have to have a valid cannabis cards. veterinarians are not allowed to recommend marijuana for the owners, which means the owner is acting as the pet's

much this costs, right now these products run between $30 and $60 apiece. rgy pills? break through your allergies. introducing flonase sensimist. more complete allergy relief in a gentle mist you may not even notice. using unique mistpro technology, new flonase sensimist delivers a gentle mist to help block six key inflammatory substances that cause your symptoms. most allergy pills only block one. and six is greater than one. break through your allergies. new flonase sensimist. ♪ because my teeth are yellow. these photos? why don't you use a whitening toothpaste? i'm afraid it's bad for my teeth. try crest 3d white. crest 3d white diamond strong toothpaste and rinse...

nd fortify weak spots. use together for two times stronger enamel. crest 3d white. is thno, it's, uh, breyers gelato indulgences. you really wouldn't like it. it's got caramel and crunchy stuff. i like caramel and crunchy stuff. breyers gelato indulgences. it's way beyond ice cream.

questions continue to surround the roll of the kremlin may have played in president trump's election last fall. on top of that is the president's professed admiration for vladamir putin. what he doesn't mention is the unfortunate fate that befalls some of putin's most prominent critics. they have been victims of shootings, suspicious suicides and poisonings. leslie stall has the story of one of them for "60 minutes." >> reporter: vladamir karamerze protested putin's policies in town hall meetings. he knew he was on a dangerous mission. when we met him last year, he said one day in may of 2015, he learned just how dangerous. >> i was in a work

my colleagues in moscow when i suddenly started to feel really sick. and i went from feeling completely normal to a very sick man. i don't remember anything for a month. i was in a coma for a week and i don't remember anything for a month and i had a cascade all of my organs switching off. >> reporter: she was shuttled from hospital to hospital in moscow for two days, as doctors frantically tried to figure out what was wrong with him. >> i was at one point connected to i think eight different artificial life support machines and doctors told my wife that it was going to be 5% chance that i survived. >> reporter: but he pete tbeat odds. but he was still walking with a limp from nerve damage. so what happened? >> it was some kind of very strong toxin, i don't know what it was. with these things as people who know more about this explain to me, you bal

to find it. >> reporter: so they never found the exact compound? >> they never did. >> reporter: it wasn't until the fourth day and after he had been on a dialysis machine that blood was drown and sent to a toxicology lab in france. it found heavy metals in his blood, but no specific toxin. still, he maintains that he was poisoned. >> i have absolutely no doubt that this was deliberate poisoning, that it was intended to kill. because as i mentioned, the doctors told my wife it's a 5% chance of survival. >> reporter: can you be sure that what happened to you was directed by mr. putin? >> well, that i have no idea. i don't know the precise circumstances, the who or the how. but i do know why. [ speaking foreign language ] >> reporter: in recent years, quite a few of putin's enemies have perished by swallowing things they shouldn't have. in 2006, russian

kremlin critic alexander litvinenko drank tea laced with pelonium 210. but what would the motive be in the case of the critic vladamir karamerze. cambridge educated, he was for years a washington based reporter. so he was well connected and had perfect english, which he used to incessantly criticize the regime on the international stage. >> a government based on genuine support does not need to jail opponents. >> reporter: he made matters worse for himself when he joined forces with this man. >> his death, if you cross the putin regime. >> reporter: bill broader was for years the largest foreign investor in

adversary, when his russian tax attorney blew the whistle on alleged large-scale theft by government officials. >> we discovered massive corruption of the putin regime. serge exposed it, testified against officials involved. he was subsequently arrested, put in pretrial detention, tortured for 358 days and killed at the age of 38. >> he was so outraged, he joined with vladamir karamerzer to lobby congress for a law targeting those responsible for that death and other human rights violations. they succeeded. the madnitski act passed in 2012. it a tess first law that sanctions individual russians, 44 so far. >> it's designed to sanction, to freeze the assets and ban the visas for people who commit these types of crimes in russia.

to their money which may be stashed in the united states. >> so vladamir putin is extremely angry that the act was going to be passed. he was angrier when it got passed and angrier when names started getting added to the list. >> reporter: one reason vladamir karamerzer is convinced he was targeted is that six people connected to the case have ernlded up dead. one was boris nemzov, who lobbied for the act. >> he was killed by five bullets in the back as he was walking home. >> reporter: this was an assassination. in some of the deaths, proving there was foul play has been a challenge. take the case of this russian banker who came forward with incriminating documents related to the case. >> alexander

at the age of 44, he went jogging and dropped dead. the police deemed it an unsuspicious natural death. >> reporter: they did look for poisoning but couldn't find any. detecting poison can be extremely difficult and there's a reason. this cold war cia memo reveals that the soviets ran a laboratory for poisons in a large and super secret installation known as the chamber to test undetectible compounds. more tests were orders and it was revealed in court that an exotic toxin was found with the help of an authority on flowers. >> a small sample of his stomach cob tents were sent to

one of the scientists found a compound that is a chinese herb, they call it the heartbreak grass. and it causes a person to die unexpectedly, without explanation. >> reporter: still, there's no direct evidence of a kremlin connection. but the list of those who have come to die unexpectedly after running afoul of mr. putin is long. political opponents and human rights lawyers have been shot. overly inquisitive reporters have perished in mysterious plane crashes or by car bombs, by poison or gunfire. journ this journalist was poisoned and shot. one killed himself by tying himself to a chair and jumping into a swimming pool. >> and you can see the full report on our website, cbs.snewcom.

wow! but what other teen problems can it fix fast? will clearasil act fast to help this teen concentrate on his math test? darn! it only worked on the acne. can it hel... nope. no. so let's be clear: clearasil works fast on teen acne, not so much on other teen things. and now there's new clearasil overnight spot patches with patented technology for faster healing. new pantene doesn't just wash i wiyour hair, it fuels it.gain. making every strand stronger. so tangles don't stand a chance. because strong is beautiful.

new de ugreeclltraearnt saving black + white.othes. no yellow stains on white clothes. no white marks on black clothes. new degree ultraclear black + white. it won't let you down.

mthat stuff only lasts a few hours. or, take mucinex. one pill fights congestion for 12 hours. guess i won't be seeing you for a while. why take medicines that only last 4 hours, when just one mucinex lasts 12 hours? let's end this. the university of dayton is a familiar sight in the ncaa basketball tournament. on friday, the number seven seed flyers w

wichita state in the first round of march madness. what's different this year, the game will be available in china. dana jacobson reports. ♪ >> reporter: it's familiar scene. a sold-out game at ohio's university of dayton arena. the exuberant home crowd celebrates the spectacle that is college basketball. the band, the cheerleaders, the face-painted fans. but courtside you also find the unexpected. a pair of student sportscasters calling the action for fans halfway around the world. >> we want to introduce our basketball to more people, not only in the united states but back in china. so i just feel like really excited. >> reporter: they are among the university's first foreign language broadcasters.

>> but also nervous. >> very nervous. >> reporter: up to a thousand fans from abroad tune in. jolin listens on his smartphone from beijing. >> it's unbelievable i can watch a game back in china. >> reporter: >> reporter: they're graduate students studying electrical engineering. >> working with some components like lasers. >> reporter: they're also a couple. >> we started dating like five years ago. she knows me better than somebody else. >> yeah, i know like what kind of mistakes he will make like in the homework, so will i tell him don't do this or something. >> i like their chemistry. thus

>> reporter: dayton's assistant athletics director recruited them. i'm assuming you don't speak manld r mandarin. >> i reached out to a professor and he helped with the translation. not just for the knowledge of it, but how do they call a game? are they excited at the right points? do they know the terminology of basketball? >> reporter: listeners abroad can't see the game, only the audio is streamed. and it's not always clear. >> i listened to the game. the signal is not stable. >> reporter: still, he considers the program, now in its second season, a success. >> i think just having that access and that connectivity through the game of basketball, which is just such a shared language, you can't beat it. >> reporter: dayton's international students arrive as fans of the game. when they aren't filling seats

at the campus rec center. how did you get interested in basketball? >> i think yao ming in the nba. >> reporter: yao ming played for eight seasons with the houston rockets, starting in 2002. he's also credited for bringing basketball to a generation of chinese fans. >> yao ming play in america very, very good. and i think maybe i can come to u.s. to broaden my horizons and practice my english. >> yes, i felt like i am. >> reporter: between practicing english and broadcasting in mandarin, they discovered something else in dayton. a shared love for college basketball. >> college basketball game is much more passion than nba game. and sometimes just one game has everything. >> and the dunk! >> i love basketball much,

i think we will be the flyer fans forever.

police in france are still hunting for the poachers who broke into a wildlife refuge, killed a white rhino and stole his horn. it's the first such case of poaching in france. but around the world, the illegal slaughter of animals is big business. south africa is attacking the problem in a unique way, with flying dogs. debra patta reports. >> reporter: meet arrow and his handler, henry. harnessed together, the

off across the vast wildlife preserve. arrow seems unperturbed, even as they hurl themselves out of the helicopter, falling more than 6,000 feet to earth. landing in the middle of the poaching wars. >> getting the dog on the front lines is always a challenge. and parachuting is one of the ways. >> reporter: these elite canine dogs are trained to immediately sniff out the poacher. rushing to attack, pinning him to the ground, until more help arrives. this may be a training exercise, but the dog's bites are real and special bite-proof suits are needed. the dogs are up against heavily armed poachers who

multimillion dollar industry. in the past seven years, a third of africa's elephants have been wiped out. nearly 100 of these sky diving dogs have been placed in game reserves across africa. in one region, they caught over 100 coachers in 18 months. he told us one dog, killer, nabbed more poachers than rangers equipped with the latest high-tech weapons. >> that is the most effective tool against the fight against coaching ever used. and it's low cost compared to other technologies and it works. >> reporter: man's best friend may turn out to be a poacher's worst enemy. debra patta, cbs news, johannesburg. >> and that's the "overnight news" for this tuesday. for some of you the news continues. for others check back later for the morning news and "chi

morning." from the broadcast center in new york city, i'm tony dokoupil. -- captions btay vic -- www.vitac.com beware the ice of march. plows pushing sand could be pushing a foot or more of snow as the blizzard takes aim at the most densely populated region of america. thousands of flights have already been grounded. also tonight -- >> obama care is collapsing, and we must act decisively to protect all americans. >> but a government report today says tens of millions will lose coverage under the gop plan. hold the phone, the white house amends its wiretap allegations against president obama. >> there's a whole host of tactics that can be used to monitor somebody. and a winter of drought-breaking rain produces a

this is the "cbs overnight news." president trump has promised to replace obamacare with an insurance plan that would cover everybody with higher-quality care at lower cost, but a report today from the non-partisan congressional budget office says millions who gained coverage under obamacare will lose it next year under the republican plan the president supports. gop leaders immediately fired back. here's nancy cordes. >> we disagree strenuously with the report that was put out. >> reporter: administration officials immediately disputed the cbo findings as house speaker paul ryan sought a silver lining. >> actually, i think if you read this entire report, i'm encouraged by it and it exceeded my expectations. >> reporter: but the non-partisan number crunchers in the congressional budget office

people would join the ranks of the uninsured next year alone with the number growing to 21 million in 2020 and 24 million in 2026. democratic leaders called it unacceptable. >> this is a remarkable figure. it speaks so eloquently to the cruelty of the bill that the speaker called "an act of mercy." >> reporter: the cbo identified three main reasons for the drop in coverage under the gop plan. first, some americans would simply choose not to buy insurance because the bill repeals obamacare's individual mandate and associated penalties. that would drive premiums up in the short term, 15% to 20% higher than they would be under obamacare, making insurance unaffordable for some, even as steep cuts to medicaid, nearly $900 billion worth over ten years, would force millions off of government-sponsored insurance. those numbers will make some skittish republicans like california's darrell issa even more reluctant to sign on. >> the current bill is not in a

form i approve of. i am trying to change it. >> reporter: and the cbo report contradicts the president's promise to boost coverage, not cut it, a prime promise he made again today. >> you'll see rates go down, down, down. you'll see plans go up up up. you'll have a lot of choices. you'll have plans nobody is even thinking of today. >> reporter: the cbo does predict under this plan premiums by the year 2026 would be about 10% lower than they would be under obamacare, though not for older americans. anthony, conservatives will like the fact that this plan is significantly cheaper than obamacare, largely because of those medicaid cuts. >> nancy cordes at the capitol, thanks, nancy. the white house has yet to provide any evidence to back the president's claim that president obama tapped his phone during the campaign. and today, the story changed with mr. trump's spokesman saying the alleged eavesdropping may not have involved a telephone. here's chief white house es

>> reporter: president trump again ignored questions about what evidence he has to back up a week-old claim on twitter that president obama tapped his phones at trump tower. white house press secretary sean spicer. >> i think if you look at the president's tweet, he said very clearly "wiretapping" in quotes. >> reporter: that according to spicer could mean any type of surveillance. spicer said the president's tweets spoke for themselves. the first and second did put "wiretapping" in quotes, but the third and fourth did not, and fourth accused mr. obama of a crime similar to watergate, calling him bad and sick. spicer said the president has not directed the justice department to turn over evidence requested by the house intelligence committee. so you're saying the president doesn't have an obligation to provide any -- >> i'm not saying that at all.

have been an abundance of reports regarding surveillance and other type of activities that occurred during the 2016 election. >> and that leads us to believe the president's only evidence are these reports. >> no, no, no, that leads you the believe that. >> reporter: white house councilor kellyanne conway also says she has no evidence of wiretapping. >> there are many ways to surveil each other now. >> reporter: do you believe that was -- >> there was an article that talked about how you can surveil someone through their phone, certainly through their television sets, any number of different ways, and microwaves that turn into cameras, et cetera. >> reporter: in another interview, conway clarified. >> i'm not inspector gadget. i don't believe people are using their microwave to spy on the trump campaign. however, i have -- i'm not in the job of having evidence. >> reporter: it appears no one at the white house has that job, the job of providing evidence. anthony, the justice department asked the house intelligence committee for more time on all of this so it could determine what, if any, responsive documents may exist. >> major garrett, thank you, major.

a california man charged with jumping the white house fence friday night was in federal court today. he could face ten years if convicted. chip reid says this latest intrusion is focusing attention once again on security at the executive mansion. >> reporter: court records say 26-year-old jonathan tran was apprehended by secret service members as he approached the south portico entrance to the white house. he was carrying two cans of mace but claimed he was a friend of the president and that he had an appointment. he also reportedly said that he's been called schizophrenic. president trump was in the white house at the time. he said this saturday ring lunch with cabinet secretaries. >> the secret service did a fantastic job. it was a troubled person. very sad. >> reporter: but an intruder making that it close to the residence wasn't supposed to happen again. in 2014, omar gonzales, armed with a knife, jumped the fence, ran into the white house, and eluded eight secret service members before being tackled in the east room. a report later found a series of errors ranging from faulty

service fatigue and understaffing. that same year another fence-jumper was tackled by secret service dogs. the latest incident comes a week after director joe clancy left the agency. he had been brought out of retirement to stop the breaches. the fence is about seven feet tall. the government plans to build a new one nearly 12 feet tall but construction won't even begin until next year. as for the latest jumper, jonathan tran, a judge today ordered him released pending trial, but anthony, he'll have to wear a gps monitor and undergo a mental health evaluation. >> chip reid, thanks, chip. the "cbs overnight news" will be right back.

now to some potentially dangerous weather. blizzard warnings are going up overnight in the east from philadelphia to new york and boston. a nor'easter could bring as much as two feet of snow and whiteout conditions to the region. the airlines have already canceled more than 6,000 flights. new york city's elevated subway service will be suspended before dawn. school closures tomorrow include philadelphia, new york city, and boston. we have team of reporters covering the storm. first eric fisher, chief meteorologist at our boston station wbz. eric? >> reporter: anthony, good evening. a very powerful and disruptive nor'easter in mid-march up and down the eastern seaboard. you see blizzard warnings in

stretching all the way up into maine. that's where a combination of strong winds and heavy snow will create some poor travel conditions as we head through tuesday. here's a look at the timeline. moving its way up the coast, tricky part of the forecast is the rain/snow line arrives right on the 95 corridor, right through the big cities, d.c., philly, and boston. that means the trickiest forecast where the most people live. big snow off to the north and west moving quickly and departing by wednesday morning. here's a look at the snow totals. again, the bigger snow up to two feet just north and west of most of those major cities. here's a look at a few of them. boston at 6 to 12. in the new york area at 12 to 18. philadelphia at 8 to 12, and d.c., a few inches of snow but much bigger totals just west of all these cities. and the wind is part of the story. as this deepens and undergoes bombogenesis, we'll see gusts top 60 miles per hour. so power outages will be coming along with this, as well as some coastal flooding. anthony? >> eric fisher, thanks. michelle miller in cleveland has a look at preparations for the big storm. >> reporter: road crews are working 12-hour shifts, racing to stay ahead of the massive

nor'easter expected to bring up to two feet of snow. they've already prepped roads with a chemical snow melt. did you really think you were going to get away scot-free? >> i was hoping. >> reporter: and this afternoon rich deszcz loaded up his salt truck to head out on his ten-mile route. >> the salt on the road from the brine will melt the snow by the time we get out there. it's going to help us out. >> reporter: an arctic blast has surfaced in recent days from the midwest to the east coast. this house in webster, new york, was entombed in ice. the chill is far cry from the mild winter so far. the state of ohio has spent just $63.3 million dollars on its snow and ice operations budget, $15 million less than a year ago. it's been at least 146 years since chicago has seen no measurable snowfall in january or february, but that's expected to change tonight with at least five inches here. the cold spell is threatening the cherry blossoms in washington, d.c.

peak bloom. bitter cold and wet, heavy snow sitting on the flower buds could kill them. and with a little bit more than a week before spring, anthony, this is not even the latest blizzard the hit ohio. last year nearly a foot of snow fell in the second week of april. >> michelle miller in cleveland, thanks, michelle. the storm is already causing trouble for travelers. transportation correspondent kris van cleave is at laguardia airport in new york. >> it's my father's birthday, and it's a pain in the neck. you know, it's making me so upset. >> reporter: this woman is like thousands trying to beat winter's brutal last gasp. she has to get out today to be with her family to celebrate in time. >> i will have to wait maybe until thursday, or if not maybe i don't know when.

>> reporter: she's far from alone. airlines are pulling their planes out of the storm's path tonight, and flights are expected to be scarce up and down the east coast tomorrow. yvonne reese is hoping to get home to ohio. >> i've been here in a blizzard in '92. i don't want to do it again. >> reporter: are you worried about getting stuck? >> yeah. i'm worried we're going to get canceled here because of ohio's weather and we're going to get stuck here. >> reporter: amtrak's busy express trains won't travel between new york and boston tuesday. today it was business as usual, a relief for christina sherman. >> we switched the train a day earlier so we could make it before the snow. >> reporter: drivers gassed up to prepare, but the roads could be impassable. new york city will be under a state of emergency starting at midnight, just a few hours before the first snow is predicted. the city's mayor, bill deblasio. >> change your plans. get off the streets. obviously closing schools. that's going to take a lot of pressure off the roads right >>ere we believe.

boards are filling up with a lot of red, and red means canceled, anthony, the people behind us here among the last folks who are going to get out of this airport before the snow brings it to a grinding halt. >> kris van cleave at laguardia. thank you, kris. overseas, iraqi troops backed by the u.s. have trapped isis forces inside western mosul. the terror group had held iraq's second largest city for nearly three years. the fighting to liberate it is fierce and holly williams is there. >> reporter: a u.s. coalition air strike and another one pulverizing an isis fighting position. [ explosions ] brigadier general abbas al jbouri confirms they hit their target little more than a city block away. >> killed more than 15. >> reporter: that means your men can now push forward another 200 yards or so? then is

forces to clear another neighborhood. they're the ones risking their lives to eradicate isis. and after four months of fighting, they have them surrounded. but instead of surrendering, isis militants are still lobbing mortars. and on every street there's more evidence of the chaos they've reeked on this city. this charred and shattered building is all that's left of mosul's museum. the exhibits nowhere to be seen. isis smashed them and then celebrated the desecration in a propaganda video. artifacts from one of the world's oldest civilizations, unislamic according to a gang of violent fanatics. luckily some were apparently plaster replicas, but others were genuine and invaluable. these are all the signs saying what used to be here. vandalism and hatred inflicted by the so-called islamic state on this majority muslim city.

what do they believe in? >> i don't know. they are crazy. just destroy them. just against human. >> reporter: just destruction? >> yea. that's all. >> reporter: iraqi forces are now on the edge of mosul's historic old city, anthony, where a maze of narrow alleyways could mean the toughest urban fighting they've faced so far. >> holly williams on the front lines in iraq. thanks, holly. coming up next, a two-year-old girl could be first to die in this country from a burning hoverboard. where's frank? it's league night! 'saved money on motorcycle insurance with geico! goin' up the country. bowl without me. frank.' i'm going to get nachos. snack bar's closed. gah! ah, ah ah. ♪ ♪ i'm goin' up the country, baby don't you wanna go? ♪

wanna go? ♪ geico motorcycle, great rates for great rides. clearasil rapid action begins working fast for clearly visible results in as little as 12 hours. wow! but what other teen problems can it fix fast? will clearasil act fast to help this teen concentrate on his math test? darn! it only worked on the acne. can it hel... nope. no. so let's be clear: clearasil works fast on teen acne, not so much on other teen things. and now there's new clearasil overnight spot patches with patented technology for faster healing.

two kids barfed in class today. it was so gross.

even those that cause stomach bugs. one more way you've got what it takes to protect. a young girl in pennsylvania is believed to be the first person in this country killed by a fire that started in a hoverboard. jericka duncan is in harrisburg. >> reporter: when this raging fire tore through this pennsylvania home friday night, several children could not get out. >> we need an additional line. we still have people trapped in the upper floors. >> reporter: the fire killed two-year-old ashante hughes and seriously injured two others. the surviving children told officials the blaze was started by a hoverboard plugged into an outlet. harrisburg fire chief brian enterline. >> i heard some sizzling and crackling in the hoverboard, and shortly thereafter it exploded

in flames. >> reporter: lieutenant dennis devoe, a 21-year veteran of the fire department, was killed in a traffic accident while responding to the fire. last year the consumer product safety commission recalled more than 500,000 hoverboards by eight different manufacturers. in some cases the lithium batteries can overheat or catch fire. since 2015, the commission has investigated more than 60 fires caused by malfunctioning hoverboards. shaka crawford was greeted with a warm hug from a neighbor as she stood outside of her fire-ravaged home, a small memorial is now growing in memory of her two-year-old granddaughter. she had a stern warning for anyone who has a hoverboard in their home. >> get rid of 'em. get rid of 'em. get rid of 'em. >> reporter: the two girls who were hospitalized as a result of

this fire are expected to be released tonight according to the family. anthony, the consumer product safety commission says if you own a hoverboard that is on their recall list, it's not too late to return that hoverboard and get a refund. >> jericka duncan with some important advice tonight. thanks, jericka. still ahead, an irresistible force turned them into immovable objects.

two former penn state officials pleaded guilty today to misdemeanor child endangerment charges in the jerry sandusky sex abuse scandal. former athletic director tim curley and former vice president gary schultz did not report sandusky to police. each could face five years in prison. sandusky, the former assistant football coach, is serving a long prison term for molesting ten boys. 35,000 lined up to start a bike race yesterday in cape town, south africa, but mother nature wasn't having it. the riders took off and were suddenly blown off their bikes by winds that topped 60 miles per hour. it was a struggle just to stand up. the race was called off.

up next, cactus flowers. spring in colorful bloom

finally tonight, as the midwest digs out of a snowstorm and the northeast prepares for a blizzard, spring is blooming in the west in living color. here's john blackstone. >> reporter: when wild flowers bloom like this in the southern california desert, it's a sight to treasure. >> this is good.

>> reporter: visitors to the ana borrego state park east of san diego are witnessing the desert at its most colorful. it's a rare display thanks to rain this winter that finally broke california's drought. >> quite a variety that's come up. >> reporter: steve bier has been a park ranger here for 15 years. >> you wonder, where did the yellows and the purples and the whites come from. >> reporter: ana borrego received double its annual rainfall, enough to bring life to seeds lying on the desert floor for years. these seeds have waited all that time? >> there are some that have been waiting for decades. >> reporter: what kind of respect does it give you looking out at the desert? >> this is beautiful. you can not look atthis and imagine that someone could come out and say nothing survives in the desert. >> reporter: but it's also true that nothing survives for long in the desert. and then, as well, one day you'll come out and this will be ne

>> it will all be gone. >> reporter: the wild flowers are already being consumed by hungry caterpillars, also having their brief moment to thrive in this harsh landscape, and temperatures climbing over 100 will quickly wilt what the caterpillars leave behind, but for a few weeks, blossoms are everywhere. this is certainly an example of the desert in bloom. >> it is indeed. >> reporter: for now in this desert, even a cactus is much more than its spikes. >> it takes your breath away, it really does. >> reporter: john blackstone, cbs news, ana borrego state park. >> and that's the "overnight news" for this tuesday. for some of you the news continues, for others check back later for the morning news and of course, "cbs this morning." from the broadcast center in new york city, i'm anthony mason. -- captions by vitac -- www.vitac.com

been cut. still, there are hundreds of thousands of civilians under the gun. holly williams is on the frontline. >> reporter: the u.s. coalition air strike, and another one, pulverizing an isis fighting position. [ explosions ] general abbas al jbouri confirms they have hit the target. a little more than a city block away.

can now push forward another 200 yards or so? >> very easy now. >> reporter: then it's the job of these iraqi forces to clear another neighborhood. they're the ones risking their lives to eradicate isis. and after four months of fighting, they have them surrounded. but instead of surrendering, isis militants are still lobbing mortars. and on every street there's more evidence of the chaos they've reeked on this city. this charred and shattered building is all that's left of mosul's museum. the exhibits nowhere to be seen. isis smashed them and then celebrated the desecration in a propaganda video. artifacts from one of the world's oldest civilizations, unislamic according to a gang of violent fanatics. luckily some were apparently plaster replicas, but others

were genuine and invaluable. these are all the signs saying what used to be here. vandalism and hatred inflicted by the so-called islamic state on this majority muslim city. what do they believe in? >> i don't know. they are crazy. just destroy them. just against human. >> reporter: just destruction? >> yeah. that's all. >> reporter: iraqi forces are now on the edge of mosul's historic old city, anthony, where a maze of narrow alleyways could mean the toughest urban fighting they've faced so far. at the white house, sean spicer says "president trump doesn't really think president obama personally wiretapped his phones. it's the latest attempt to tamp down the firestorm sparked by an early morning tweet by president trump. major garrett reports. >> reporter: president trump again ignored questions about what evidence he has to back up

president obama tapped his phones at trump tower. white house press secretary sean spicer. >> i think if you look at the president's tweet, he said very clearly "wiretapping" in quotes. >> reporter: that according to spicer could mean any type of surveillance. spicer said the president's tweets spoke for themselves. the first and second did put "wiretapping" in quotes, but the third and fourth did not, and fourth accused mr. obama of a crime similar to watergate, calling him bad and sick. spicer said the president has not directed the justice department to turn over evidence requested by the house intelligence committee. so you're saying the president doesn't have an obligation to provide any -- >> i'm not saying that at all. there is no question that there have been an abundance of reports regarding surveillance and other type of activities that occurred during the 2016 election. >> and that leads us to believe the president's only evidence are these reports. >> no, no, no, tle

>> reporter: white house councilor kellyanne conway also says she has no evidence of wiretapping. >> there are many ways to surveil each other now. unfortunately. >> reporter: do you believe that was -- >> there was an article that talked about how you can surveil someone through their phone, certainly through their television sets, any number of different ways, and microwaves that turn into cameras, et cetera. >> reporter: in another interview, conway clarified. >> i'm not inspector gadget. i don't believe people are using their microwave to spy on the trump campaign. however, i have -- i'm not in the job of having evidence. the national debate over medical marijuana could now be going to the dogs. a lot of pet owners are choosing cannabis to treat their ailing animals. but is it safe? mireya villarreal has this story from the buds and roses dispensary in wloeshgs. -- in los angeles. >> reporter: pet owners who can no longer find pain relief for their furry friends are turning

to products just like this. they swear by the results, but this is not regulated and there's no proven results, which means this product right here is finding some dogged resistance. it's dinnertime for brutus and kailee. but along with the meal, brett hartman also feeds them something extra, a dose of liquid cannabis. he says it's helped alleviate kailee's anxiety and brutus' chronic pain after surgery for a pit bull attack. >> utilizing cannabis every day with him has made a big difference. >> reporter: are you seeing an impact in their life? >> a huge impact. a 13-year-old datsun are going to have more issues with mobility. and his quality of life is just so much more enjoyable. >> reporter: some people will say, however, that you are drugging your dog. >> okay. i beg to differ. i feel like this is botanical. this is plant medicine. >> it's specifically made for the animals.

medical marijuana field about 20 years ago. but for the past decade, her focus has shifted from humans to animals. >> we use the same cannabis extract we do in humans. so we don't differentiate between humans and the animals. and i've seen better results in the animals than i am in the humans. >> reporter: she says her marijuana based product, treat well and others like it, does for animals the same thing medical pot does for humans, alleviates pain, even battles cancer. >> we don't have any actual peer reviewed studies for the use of those compounds on pets. >> reporter: veterinarian ken polaski is president of the california veterinarian association. he says as more states legalize marijuana, cases of pets getting sick for ingesting their owner's pot are spiking. >> we see pets that come in with intoxications and they can run the gamete from being fa

mild to severe. unfortunately, there are instances where there have been fatal overdoses. >> reporter: although such deaths are rare, he says they often cause sensory overload, lack of coordination and tremors. >> if you use small amounts and follow the instructions, it does not get the animal high. >> reporter: she says because pet products have fewer chemicals that cause the sensation of being high, the animal won't get sick. as for brett hartman, he hopes lawmakers clear the way for studies which could confirm the safety of cannabis for pets. >> i'm looking forward to common sense legislation, which is going to be based on facts. >> reporter: if people want to give pot to their pets, they have to have a valid cannabis cards. veterinarians are not allowed to prescribe or recommend marijuana for animals, which means that the pet owner is now acting as the pet's doctor, which is also causing concern for some vets

now, if you are interested in how much this costs, right now these products are running between $30 ad and $60 apiece. show me the carfax. now the car you want and the history you need are easy to find. show me used trucks with one owner. pretty cool. [laughs] ah... ahem... show me the carfax. start your used car search and get free carfax reports at the all-new carfax.com. mthat stuff only lasts a few hours. or, take mucinex. one pill fights congestion for 12 hours. guess i won't be seeing you for a while. why take medicines

when just one mucinex lasts 12 hours? let's end this. do you think i'm gonna crack under pressure or conquer the field? defy expectations any day with always infinity. made with flexfoam. absorbs 10x its weight. rewrite the rules. always.

questions continue to surround the roll of the kremlin may have played in president trump's election last fall. on top of that is the president's professed admiration for vladamir putin. what he doesn't mention is the unfortunate fate that befalls some of putin's most prominent critics. they have been victims of shootings, suspicious suicides and poisonings. leslie stall has the story of one of them for "60 minutes." >> reporter: vladamir karamerzer was an opposition activist on the frontlines, protesting putin's policies, organizing demonstrations, and town hall meetings. he knew he was on a dangerous mission. when we met him last year, he told us that one day in may, 2015, he learned just how dangerous. >> i was in a work meeting with my colleag

suddenly started to feel really sick. and i went in 20 minutes from feeling competely normal to a very sick man. i don't remember anything for a month. i was in a coma for a week and i don't remember anything for a month and i had a cascade all of my major organs failing, just switching off. the lungs, the heart, the kidneys. >> reporter: he was shuttled from hospital to hospital in moscow for two days, as doctors frantically tried to figure out what was wrong with him. >> i was at one point connected to i think eight different artificial life support machines and doctors told my wife that it was going to be 5% chance that i survived. >> reporter: but he beat the odds. when we spoke with him last year, he had been recovering for a year. but he was still walking with a limp from nerve damage. so what happened? >> it was some kind of very strong toxin, i don't know what it was. with these things as people who know more about this explain to me, you basically have to know exactl

to find it. >> reporter: so they never found the exact compound? >> they never did. >> reporter: it wasn't until the fourth day and after he had been on a dialysis machine that blood was drown and sent to a toxicology lab in france. it found heavy metals in his blood, but no specific toxin. still, he maintains that he was poisoned. >> i have absolutely no doubt that this was deliberate poisoning, that it was intended to kill. because as i mentioned, the doctors told my wife it's a 5% chance of survival. and when it's that kind of percentage, it's not to scare, it's to kill. >> reporter: can you be sure that what happened to you was directed by mr. putin? >> well, that i have no idea. i don't know the precise circumstances, the who or the how. but i do know why. [ speaking foreign language ] >> reporter: in recent years, quite a few of putin's enemies have perished by swallowing things they shouldn't have. in 2006, russian spy turned

kremlin critic alexander litvinenko drank tea laced with pelonium 210. two years earlier, the ukrainian politician victor yushchenko ingested dioxin. he survived but was disfigured. but what would the motive be in the case of the critic vladamir karamerzer. cambridge educated, he was for years a washington based reporter for a russian tv station. so he was well connected and had perfect english, which he used to incessantly criticize the regime on the international stage. >> a government based on genuine support does not need to jail opponents. >> reporter: as if his outspokenness wasn't enough to ager the kremlin, he made matters worse for himself when he joined forces with this man. >> his death, if you cross the putin regime. >> reporter: bill broader was for years the largest foreign investor in russia. and putin's champion.

adversary, when his russian tax attorney blew the whistle on alleged large-scale theft by government officials. >> we discovered massive corruption of the putin regime. serge exposed it, testified against officials involved. he was subsequently arrested, put in pretrial detention, tortured for 358 days and killed at the age of 37. >> he was so outraged, he joined with vladamir karamerzer to lobby the u.s. congress for a law targeting those responsible for that death and other human rights violations. they succeeded. the madnitski act passed in 2012. it's the first law that sanctions individual russians, 44 so far. >> it's designed to sanction, to freeze the assets and ban the visas for people who commit these types of crimes in russia. >> reporter: so they can't get to theon

>> so vladamir putin is extremely angry that the act was going to be passed. he was angrier when it got passed and angrier when names started getting added to the list. >> reporter: one reason vladamir karamerzer is convinced he was targeted is that six people connected to the case have ended up dead. one was boris nemzov, who was a leader of russia's opposition and his partner in lobbying for the act. >> on the 27th of february, 2015, he was filled by five bullets in the back as he was walking home. >> reporter: this was an assassination. in some of the deaths, proving there was foul play has been a challenge. take the case of this russian banker who came forward with incriminating documents related to the case. >> alexander paraplicni.

at the age of 44, he went jogging outside his home outside of london and dropped dead. the police deemed it an unsuspicious natural death. >> reporter: they did look for poisoning but couldn't find any. >> they did a very first round toxicology screen. they didn't find anything on the first run through. >> reporter: detecting poison can be extremely difficult, and there's a reason. this cold war cia memo reveals that the soviets ran a laboratory for poisons in a large and super secret installation known as the chamber to test undetectible compounds. in the case of the banker in london, the coroner wasn't willing to give up. he ordered more tests and three years later it was revealed in court that an exotic toxin was found with the help of an authority on flowers. >> a small sample of his stomach content were sent to me, and

compound that is a chinese herb, they call it the heartbreak grass. and it causes a person to die unexpectedly, without explanation. >> reporter: still, there's no direct evidence of a kremlin connection. but the list of those who have come to die unexpectedly after running afoul of mr. putin is long. political opponents and human rights lawyers have been shot. overly inquisitive reporters have perished in mysterious plane crashes or by car bombs, by poison or gunfire. this journalist was poisoned and shot. then there are enemies who kill themselves. one by hanging, one by stabbing himself to death with two knives. and one by tying himself to a chair and jumping into a swimming pool. >> and you can see the full report on our website, cbsnews.com. the "overnight news" will be right back.

yeah, i just saved a whole lot of money by swhuh.ing to geico. we should take a closer look at geico... you know, geico insures way more than cars. boats, motorcycles... even rvs! geico insures rvs? what's an rv? uh, the thing we've been stuck on for five years! wait, i'm not a real moose?? we've been over this, jeff... we're stickers! i'm not a real moose? give him some space. deep breaths, jeff. what's a sticker?!? take a closer look at geico. great savings. and a whole lot more.

new degree ultraclear black + white. no yellow stains on white clothes. no white marks on black clothes. new degree ultraclear black + white. it won't let you down. clearasil rapid action begins working fast for clearly visible results in as little as 12 hours. wow! but what other teen problems can it fix fast? will clearasil act fast to help this teen concentrate on his math test? darn! it only worked on the acne. can it hel... nope. no. so let's be clear: clearasil works fast on teen acne, not so much on other teen things. and now there's new clearasil overnight spot patches with patented technology for faster healing.

the university of dayton is a familiar sight in the ncaa basketball tournament. on friday, the number seven seed flyers will take on number ten wia

of march madness. what's different this year, the game will be available in china. dana jacobson reports. ♪ >> reporter: it's a familiar scene. a sold-out game at ohio's university of dayton arena. the exuberant home crowd celebrates the spectacle that is college basketball. the band, the cheerleaders, the face-painted fans. but courtside you also find the unexpected. a pair of student sportscasters calling the action for fans halfway around the world. >> we want to introduce our basketball to more people, not only in the united states but back in china. so i just feel like really excited. >> reporter: they are among the university's first foreign language broadcasters. >> i feel very excited.

>> very nervous. >> reporter: up to a thousand fans from abroad tune in. jolin listens on his smartphone from beijing. >> i spent five years in dayton. it's unbelievable i can still listen and watch the game when i'm back in china. >> reporter: poised and prepared as they are, they are not broadcast or communications majors. they're graduate students studying electrical engineering. >> working with some components like lasers. >> reporter: they're also a couple. >> we started dating like five years ago. she knows me better than somebody else. >> yeah, i know like what kind of mistakes he will make like in the homework, so will i tell him don't do this or something. >> i like their chemistry. they just have an "it" factor.

>> reporter: dayton's assistant athletics director recruited them. i'm assuming you don't speak mandarin. so you had to get somebody in to help you know if they knew what they were talking about. >> absolutely. i reached out to a professor and he helped with the translation. not just for the knowledge of it, but how do they call a game? are they excited at the right points? do they know the terminology of basketball? >> reporter: listeners abroad can't see the game, only the audio is streamed. and it's not always clear. >> i listened to the game. it's hard to -- the signal is not stable. >> reporter: still, he considers the program, now in its second season, a success. >> i think just having that access and that connectivity through the game of basketball, which is just such a shared language, you can't beat it. >> reporter: dayton's international students arrive as fans of the game. when they aren't filling seats in the arena, they're competing

how did you get interested in basketball? >> i think yao ming landed in the nba. >> reporter: yao ming, the first chinese athlete to become an nba all-star, played for eight seasons with the houston rockets, starting in 2002. he's also credited for bringing basketball to a generation of chinese fans. >> yao ming play in america very, very good. and i think maybe i can come to u.s. to broaden my horizons and practice my english. >> yes, i felt like i am. >> reporter: between practicing english and broadcasting in mandarin, they discovered something else in dayton. a shared love for college basketball. >> college basketball game is much more passion than nba game. and sometimes just one game has everything. >> and the dunk! >> i love basketball much, yeah. in

i just need a second. is your weight holding you back? [male narrator] are everyday tasks getting harder and harder to do? did you see this? hm? your cousin's in the hospital from a heart attack. really?

or obesity can be serious. but you can do something about it. i know you're worried. i found this. [narrator] take the your weight matters challenge. visit your weight matters dot org where you'll find free resources to help you take control. you can start improving your life right away. download the free toolkit to prepa you to speak with a healthcare provider about your weight and health. your weight does matter. accept the challenge and take charge today. visit your weight matters dot org.

ready or not, it is here, the first and hopefully the last major winter storm of 2017. good morning, welcome to wake up washington. today is tuesday march 14th. i'm jan jeffcoat. you can see we have delays and closings running at the bottom of your screen. >> i'm mike hydeck. boy to we have a huge team to get you around the whole region there morning. you're going to see where it is. melissa nord we're going to start with you. what a tricky storm this is. >> it's got several hours to go here, and we've got a mixed bag of precipitation depending on where exactly you are. we're tracking sleet. we're tracking rain. we're tracking freezing rain and of course we can't forget about that heavy snow in some areas that's been falling for a couple of hours and will be picking up in intensity as we work our way throughout the 5 and 6 a.m. hour