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if you were a hippie in the '60s, you need to know. it's the dawning of the age of aquarius. yeah, and something else that's cool. what? osteoporosis is preventable. all: osteo's preventable? right on! if you dig your bones, protect them.

all: cbs cares! campaigning today in south carolina, donald trump said that waterboarding is not severe enough in the effort to pry the truth out of suspected terrorists. and from the sound of it, he and his chief rival ted cruz might like to try it on each other. in campaigns that seem unable to break out of a cycle of name calling. major garrett is in south carolina. >> donald, i would encourage you if you want to file a lawsuit, challenging this ad claiming it is defamation, file the lawsuit. >> ted cruz scoffed at donald trump for threatening to sue over this ad from the cruz campaign. >> i am pro-choice in every

respect. >> mr. trump sent me a legal cease and desist letter saying stop telling the voters my record. that is objectively legally frivolous. >> trump fired back calling cruz desperate the i am pro-life the i do not support taxpayer funding for planned parenthood as they're performing abortion the gop front-runner said in a statement. trump called cruz a liar all week. he also threat tuned sue cruz over eligibility to run for president given canadian birth. on another legal issue, trump said today he would defy geneva convention prohibitions and use torture to fight terrorism. >> torture works, okay, torture, torture doesn't work. belief me it works. what do you thing of waterboarding, fine. we should go much stronger than water board. >> marco rubio, polling behind trump and cruz, won the endorsement of south carolina governor nikki haley. >> if we elect marco rubio, every day will be a great day in america.

>> a blow to jeb bush whose brother, george w. bush met privately with haley monday. trump picked up endorsement of the low country sportsman today. influential hunting and fishing group. the group backed the 2012 south carolina republican primary winner newt gingrich. >> the republican vote in south carolina is on saturday. major, thank you. three days before the democratic caucuses in nevada, the race is as tight as it can be. in a new poll out today, clinton 4. sanders 47. we spent a day with sanders last week, and we'll do the same with clinton tomorrow. >> at least 28 people were killed today, more than 60 wounded after a bomb hit a military convoy in turkey's capital ankara. no group claimed responsibility. turkey is fighting a long-running insurgency with kurdish rebels. separately today t. turkey shelled kurdish troops in syria. fresh evidence that last week's

cease-fire signed by the u.s., russia and others never had a chance. russian war planes are clearing the way for the assad dictatorship to overrun the rebels. the five-year-old civil war created the chaos that led to isis. and holly williams is following this desperate fight. >> reporter: from bep neath the rubble of a shattered building a little boy waves his hand, telling rescue workers he is still alive. second later they free him. bloodied, but breathing. they also dig frantically for a baby. but when they get to this child, it's too late. we can't independent leap verify these videos. but they aper to show the syrian regime's new offensive in aleppo province which is backed by russian air strikes. hassan haj ali, a rebel commander who told us his men have received weapons from the

u.s. and are trying to fight off the assault. when the regime kills women and children, he told us, they're telling syrians to get out of rebel held areas. as the regime and russia bombard aleppo province, the battlefield there has become even more chaotic. now there is evidence that groups supported by the u.s. have started to fight each other. as they vie for territory. hassan haj ali with u.s. backed commanders told us they're clashing with kurdish fighters and the kurdish group also receives american support. our american friend said they would put pressure on the kurd to stop the clashes he told us. but there is no sign that has happened. the glimmer of good news from

syria today is that aid convoys carrying food and medicine, made it into places where people have been cut off by fighting. and, scott, one of the towns is media where we have seen reports of people starving to death. >> holly williams on the syrian border for us tonight. holly, thank you. an old battery recycling plant has left a neighborhood contaminated with lead. >> years after a devastating war wound, a veteran battles congress and the va. the "cbs overnight news" will be right back. olay total effects a skin transformation that rivals the leading department store moisturizer. revives skin to fight 7 signs of aging. with olay, you age less, so you can be ageless. olay. ageless. (sound♪ of music ♪histling)

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today, governor jerry brown asked the california legislature for $176 million to clean up a toxic mess near los angeles. the exide battery recycling plant shut down in 2014, but it left dangerous lead in the soil. amelia vallejo no longer allows her kids to play in the yard. >> i didn't know i was harping my kids. >> reporter: her home sits a mile north of exide technology where according to state environmental agencies the smokestacks were spewing dangerous levels of lead and arsenic particles into nearby communities for years.

vallejo's property tested positive for lead at 1500 parts per million above levels for hazardous waste by california state standard. several member of her family suffer from serious health conditions often associated with lead poisoning including her 5-year-old disabled son. >> i feel like my whole family has been taken advantage. but yet, we'renot getting the proper help. it is taking quite a bit of time. and once again the damage has been done. >> reporter: since 1981, exide technologies recycled car batteries in vernon, california, using a temporary permit which allowed them to side step strict state hazardous waste laws for 30 years. during that time the company was cited by california's department of toxic substances at least 10 times. and issued over 1.3 million in fines. last year to avoid criminal prosecution, exide made a deal with the federal government to

shut down and set aside $9 million in a trust for clean-up. >> i see this as a big environmental justice issue. los angeles county supervisor, has been pushing the state to do more for months. she says today's $176 million plan is a start but may not be enough to make these families whole again. >> i think the stay failed them. i think exide failed them. >> reporter: state officials say this size of a clean-up including the plant and surrounding homes could take over $176 million. they won't know an exact amount until they get started. scott, that is a process that could take several years to finish. >> maria, thank you. a man loses a wallet and gets a letter explaining why he is not getting it back. that's next.

when riley flaherty lost his wallet in new york he thought he would never see it again. and he won't. the other day the person who found it mailed flaherty his license and credit card with a letter explaining -- "i kept the cash because i needed weed. the metro card because, well, the subway fare is $2.75. and the wallet, because the it is kind of cool." he may not be honest at least he is honest about it. flaherty was upset that the

anonymous rider kept his mr. shiny's shoe shine loyalty card because he said, "i almost had a free shine." and we'll be right back.

we end tonight with a soldier's story. long after his war ended he is still fighting for his dreams and for hundred of wounded comrades. here's david martin. >> reporter: losing a leg in afghanistan was not about to stop kevin jaye from marrying lauren belamode last august. another wound cast a cloud of doubt over their vows. >> i am looking forward to every day i have with you watching us grow from just the two of us to a family that we have always dreamed of. >> reporter: the roadside bomb that took kevin's leg also blew away one of his testicles and damaged the other. >> this is the wound guys are terrified snuff. >> yeah. >> any place but there? >> when guys get hurt. don't even tell me. >> reporter: they went to see, dr. jason bromer of the shade yo grove clinic. >> he does make testosterone and some sperm, but far less than the average. and not enough for them to be

able to conceive naturally. >> reporter: bromer performed in veto fertilization using a needle to inject kevin's sperm directly into one of lauren's eggs in the laboratory. it didn't work. after a second try, lauren tested with a home pregnancy kit. >> like, 4:00, 5:00 in the morning. i woke him up. i am pregnant. i am pregnant. >> reporter: that's how you wok up? >> it was very exciting. probably the best wake-up call you could ever in the history of wake-up calls. >> reporter: a sonogram confirmed it. they could see their baby's heart beating. >> we got one baby. we have one heartbeat. >> reporter: okay. you know some of the guys are still pretty good. some of your guys? your sperm. >> working the way it should be. >> reporter: you have been very, open in what in most couple's lives is a very, very private thing. why are you being so open? >> we are trying to change, you

know a law in congress to allow other guys in my situation, to be able to have the family that they want, family of their dreams, and not break the bank. >> reporter: that's right, a current law that is the product of anti-abortion politics prohibits the department of veteran affairs from covering in veto fertilization from any of uh the estimated 100 veterans who have suffered damage to. they were able to afford the $25,000 cost because her job as a teacher comes with health insurance that covers in vitro fertilization. >> our hope is to be able to change the law. we are not really looking for handouts or anything like that. >> kevin and lauren are expecting they're baby in august. but they have done it without any help from the government which sent him to war. david martin, cbs news, frederick, maryland. that's the "cbs overnight news" for this thursday. for some of you the news continues. for others, check back with us a little bit later for the morning

news. and cbs this morning. from the broadcast center in new york city. i'm scott pelley. welcome to the overnight news. i'm michelle miller. balance between privacy and security is pitting silicon valley against the u.s. government. apple is resisting a federal judge's order to help the fbi unlock an iphone used by one of the shooters in the san bernardino terror attack. here's jeff pegues. >> reporter: the tech giant isn't backing down and is raising the stakes by accusing the government of asking apple to actually hack into its own users and undermine decades of security advancements. apple insists this is a debate over privacy, versus security. more than two months after syed farook and his wife ma'lik, killed 14 in a deadly terror attack the fbi says it is

missing a key piece of evidence. >> san bernardino, very important investigation to us. we still have one of the killers' phones we have not been able to open. >> reporter: the phone is locked with a passcode. the government believes auto erase feature is turned on, meaning all information on the device would be deleted after several incorrect password attempts. tuesday's ruling requires apple to disable the auto erase function on farook's phone and enable the fbi to submit pass code to unlock the phone. but the tech company is fighting back in an online letter. ceo tim cook writes. the u.s. government is asked us for something we simply do not have. and something we kid too dangerous to create. they have asked us to build a back door to the iphone. in the wrong hands, this software which does not exist

today would have potential to unlock any iphone in someone's physical possession. cook previously defended apple's encryption techniques with char low rose. >> when we design a new service, we try not to collect data. so, we're not reading your e-mail. we are not reading your imessage. if the government laid a subpoena on us to get your imessages we can't provide it, it is encrypted we don't have the key. >> reporter: the government says hacking the iphone could provide key information on who the couple communicated with and where they were before and after the shooting. on its face this case may sound like it is about unlocking a cell phone it's about encryption and how information is protected. for a year, fbi director james comey has been asking the tech industry for help in encryption. it isn't just affecting national security investigations but local police are running into encryption roadblocks when it comes to solving murder cases as well.

the pentagon is also trying to improve cooperation with technology companies. charlie rose discussed encryption debate with defense secretary ash carter. the conversation took place before apple's response. >> so if apple says it is encrypted we can't help you. what do you say? >> well, i'm not talking about, to apple now, within our own intelligence system with respect to the companies, we have to, we, there is -- a situation charlie. you and i have talked about this before. where -- i am trying to build bridges between us and tech companies. now i don't expect them to -- to do things to help us that, that compromise their business international competitive position. but i do want to have enough bridge. the tech sector. we can work, toward possible solutions to common problems. >> to watch more of charlie rose's interview with defense secretary carter, go to our website at cbs news.com.

in campaign 2016. the first in the south primary is just two days away. republican front-runner, donald trump its expanding his lead in the polls ahead of saturday's vote in south carolina. the billionaire candidate is also firing back at president obama's prediction that trmp will not win the presidency. here is major garrett. >> reporter: republicans don't take advice or cues from president obama especially true when picking a nominee. even so the president weighed in dropping his prediction donald trump would not win the white house in the middle of the south carolina primary. a comment that could boost support for trump among supporters who are eager to prove the president wrong and possibly even defy him. >> i don't think you are going to be on his christmas card list this year. >> i don't mind. >> let me read you what president obama said. >> great compliment. donald trump wore the president's prediction like a badge of honor. >> i continue to believe, mr.

trump will not be president. >> wrapping up a summit with asian leaders in california, president obama said voter fatigue will halt trump any white house bid. >> it's not hosting a talk show. or a reality show. >> reporter: mr. obama did not predict g.o.p. primary voters would necessarily sour on trump in fact he seemed to taunt them creating a general election where trump is the gop standard bearer. >> people vent and express themselves, seems like entertainment, report the as entertainment. as you get closer, reality has a way of intruding. >> he has done such a lousy job as president. trump was equally dismissive. you are lucky i didn't run last time when romney ran. because you would have been a one term president. >> republicans chasing trump tried to reverse momentum here. >> i don't think mr. trump has a

plan other than he will be huge. >> when radical islamic terroristed wage jihad on the united states of america, the answer is not to tweet insults at them. >> on the other side of the campaign trail, democrats will vote in south carolina a week from saturday. hillary clinton and bernie sanders are competing for the support of african-americans who make up more than half of the state's electorate. here is nancy cordes. >> do you guys feel the bern? >> in atlanta, sanders teamed up with the rapper and joined hand with black ministers. >> we pray for bernie sanders. >> in harlem, clinton argued sanders was newcomer to the fight for racial equality. >> you can't show up election time and say the right things and hope that is enough. we can't start building relationships a few weeks before a vote. >> some of her congressional supporters have even questioned sanders' claims he was part of the civil rights movement. but this video from 1963, apares

to show a young sanders, resisting arrest in chicago. he was protesting in an african-american neighborhood that day over the city's plan to construct a school entirely out of mobile homes. is it him? a sanders aide told cbs news he thinks so but isn't 100% sure. we are looking into it. >> we have got to end racism. >> reporter: at morehouse, historically black college in atlanta last night. sanders said he would reform the criminal justice system. >> after my first term as president, we will not have more people in jail than any other country. [ cheers and applause ] >> sanders and clinton have already discussed race more frequently than then senator obama did during his 2008 presidential run. >> these inequities are wrong, but they're also immoral.

and it will be the mission of my presidency to bring them to an end. >>

the long term impact of climate change can be hard to grasp. gradual differences in the environment are not always easy to see. we were able to get a close look at how climate change is affecting one of the most remarkable animals in north america. lee cowen visited the self proclaimed polar bear capital of the world. >> reporter: on the edge of canada's arctic, along the western shore of hudson bay, it is easy to think you have reached the ends of the earth. in fact it can feel look you are utterly alone up here. but then out in all of that white, a pair of sleepy dark eyes slowly open.

revealing what we came all this way to see. and apparently, the world's largest land predator came to see us too. >> for me this is mind blowing. how rare is nice see here? >> well it is pretty common to see polar bears out here this time of year. but it's not as common to see a big old male like that. just come and lay down right next to the buggy. >> it is unreal. >> yeah, pretty impressive sight. >> reporter: the buggy is a tundra buggy -- sort of a cross between a tour bus and monitor struck. >> 20 minutes. >> reporter: where steve amstrip does much of his work as chief scientist for polar bears international. a private group campaigning for the bears' conservation. >> oh, look at here. he is getting up. >> reporter: so what do you -- what do you think when you see

that? >> well, you know, i have, i have been working with polar bears for -- for 35 years now. and -- i still, every time i see them it's holy cow there is a real wild polar bear. they're just incredible creatures. >> we're near churchill, manitoba, remote frontier town that proudly calls itself the polar bear capital of the world. it is isolated to be sure. you can't even get to this town by road. but every fall these giants of the north come here in droves to wait for hudson bay to freeze back over. so they can start eating again. the polar bears' main source of food is seal meat. the easiest way for the bears to hunt them is from the ice above.

as their line grows on land another migration rolls up to watch. >> freezing. >> reporter: a quiet stampede of eco tourists anxious to catch a glimpse of an animal whose future is as hotly debated as climate change itself. >> in the united states, we have listed polar bears as threatened species under the u.s. endangered species act. they were listed as threatened not necessarily because of their current status, but because of what we anticipate their future status to be. >> reporter: and what he anticipates their future status might be has him worried but he knows not everyone is wringing their hand. currently estimated between 20,000 to 25,000 polar bears in the wild. to many that is a pretty sizable number. some of the bears in the upper reaches of the arctic seem to be doing quite well. >> they lose a kilogram of body weight or two pound of body weight every day they're on

land. >> reporter: what concerns him the most are the bears here who he says are experiencing the effects of climate change right now. >> these guys are on land now. a whole month longer than they were 30 years ago. >> we could say, one population might be doing well now. but we know that soon all of the populations will have less sea ice than they do now. some will have no sea ice. >> those who track sea ice levels, national snow and ice data center say seasonal ice in the southernmost region of the polar bear habitat is already melting earlier and freezing later. that means, bears are marooned on land longer and getting hungrier. how long has he gone without eating a full meal. >> they came ashore this year, i think, in about the middle of

july. he really hasn't had much to eat since then. >> reporter: in november when we were there, the bears were spending most of their time lounging about frying to conserve energy. which makes them pretty easy to find and photograph. let's face it nothing makes for a better photo op than a scratching, relaxing, polar bear. while they look as friendly as they are fuzzy. truth is they're one of nature's perfect killing machines. their enormous size and strength are part of the allure. so many people have told me now, this is their bucket list. kevin burke is one of churchill's few locales and takes joy in showing tour tiss their frozen backyard. >> a lot of activity. the bears are checking the ice. let's check it out. he drives one of the tundra buggies. and a company providing bundled up enthusiasts a chance of a

lifetime. >> whoa. >> oh, my gosh. >> going after the other one. the bears don't seem to mind the intrusion. in fact many are downright curious of the tundra buggies. on occasion, too curious. >> a lot of times through years. i watched the bears. they're -- they'll push back. they'll get on the ground. and look along like that. my opinion is, i don't think we smell all that appealing to them. >> we might not smell too appealing, but the food in town does. there are warning signs posted everywhere. reminding the residents to beep bear aware as they call it. we quickly found out why. >> they're getting way too close. >> yeah. >> this mom and her two cubs wandered right up behind us on a busy road just outside of town. >> mike. mike. >> she came within a few feet of

our camera. only to be chased by a car of looky-loos back into the trees. >> is it safe to walk around churchill? >> i would say it is safe to walk around churchill in the day. i wouldn't say so at night. >> reporter: a manitoba conservation officer. >> right over here you can see them walking away from us. yeah. his job -- to keep polar bears away from people. >> which is a good sign. >> good sign, yeah, we want that to happen. >> reporter: if it can't scare the nuisance bears away, well, they capture them. so back here is where we keep one of our traps. 50%, 60% of the bears. half the bears we capture this year have been at this trap.

the way ward bears are brought here, what locals call, polar bear jail. to make sure they're not tempted to come back to town again, the bears are given no food. just water. >> we don't want them to associate food to humans or to that building. we are going to hold them 30 days. 30 days closer to the time the ice is going to form on the bay when they're going to go out and hunt seals. also 30 days away from the problem behavior that it caused them to go there in the first place. when their sentence 'tis up, they're tranquilized and air lifted back out into the ton tundra. not lost on anyone here is the carbon footprint left behind by those who travel all this way to witness all things polar bear. >> all of the tourists that show up here does that help or hurt? >> i think that for many people seeing something in person,

seeing how things are now and hearing how they used to be, and seeing a magnificent species of the polar bear right in front of them suddenly they can become inspired in a way that they might never have become inspired before. you know, i studied polar bears in alaska for -- for most of my adult life. and one of the last things i did was predict that they were going to disappear. it's a little hard for me to talk about. to think that may might be gone. i don't want to think about that. so i want to do what i can to stop it. i think we are. i think we are making progress. >> reporter: most agree progress was made at global climate change conference in paris. representatives of 195 nation as greed for very first time to lower planet warming green house

gasses. in the meantime, the polar bears here, and all around, the vast reaches of the arctic, will continue to do what they have always done. survive the best they can. in whatever conditions are thrown their way. i took mucinex dm for my phlegmy cough. yeah...but what about mike? he has that dry scratchy thing going on. guess what? it works on his cough too. cough! guess what? it works on his cough too. what? stop! don't pull me! spoiler alert! she doesn't make it! only mucinex dm relieves both wet and dry coughs for 12 hours with two medicines in one pill. start the relief. ditch the misery. let's end this. what's that, broheim? i switched to geico and got more. more savings on car insurance? yeah bro-fessor, and more. like renters insurance. more ways to save. nice, bro-tato chip. that's not all, bro-tein shake. geico has motorcycle and rv insurance, too.

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every touch, gently intensified. a little touch is all it takes. k-y touch. the country any most prestigious dog competition crowned a champion. a 3-year-old german short-haired pointer best in show at

westminster kennel club dog show. the win was an upset because another dog was favored to take the top prize. don dahler breaks it down for us. >> reporter: one more time all the way around the german shepherd rumor. >> reporter: as all seven purebred finalists strutted beauty and poise, the judge made up his mind. >> best in show dog tonight. 2016 is the german short haired. >> the german short haired pointer. >> reporter: c.j. traveled from california with valerie nunez atkinson. >> a great short hair. a great one. definitely will go down in history and now. there were seven fabulous dogs out there. you couldn't go wrong any which way. >> reporter: the rough competition wasn't short on drama. >> the winner of the herding group -- german shepherd dog, 8. >> reporter: much of the spotlight had been on the crowd

favorite to win. a 4-year-old german shepard named rumor. before the finale, handler kent boyles was trying to keep the top ranked show dog from losing her cool. >> really never dreamed we would have one that would be best in show. and go the way this one is. >> an amazing dog. >> kind of turned out beyond our wildest imagination. >> well done. >> one judge presides over best in show this year's king maker dr. richard maem. >> i was focusing on the expression on the face. expression of the breed is really important. each breed is unique has to have that expression. >> reporter: c.j.'s co-owner says at home he is just one of the pups. >> he is very serious. it is business. at home he is silly. he is a there mall dog. he gets dirty. he has fun. he always has the to have something in his mouth. always. that's the sporting dog. >> the "cbs overnight news" will be right back.

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over the past month.

the popularity of greyhound racing, the hound could be seeing their final finish line. david begnaud reports. >> reporter: taking his daughter and grandchildren to the naples fort myers greyhound racing track for 20 years. on this day the grandstands were nearly empty. >> i've have seen a big decline in the attendance. i remember the crowds really cheering. >> only 19 dog tracks remain in the u.s. 12 are in florida. izadore habnik owns two. >> have a business seats thousands. going to a dolphins game in

december. >> reporter: he lose thes $5 million a year running the races. he says he has to in order to keep his more profitable poker business open. florida law mandates it. >> we have to run 90% of the amount of racing we can in 1996 to keep our poker room open. >> how many races do you have to run ape ye year? >> he supports decoupling the two businesses so he can run his poker rooms without racing the dogs. the executive director of gray 2 k, an organization working to protect greyhound. >> greyhound racing is cruel, inhumane. the dogs live in small cages for 22 hours a day. the cages are barely large enough for the degree to stand up or turn around. if they've don't want to run greyhound racing they could stop today. stop today. turn in your permit. >> reporter: he insists the dogs are well cared for and blames audience decline on track owners. >> why greyhound racing is alive and well if the tracks wanted to

promote it, if the tracks wanted to modernize it. the animal rights groups and greyhound tracks want slot casinos. >> reporter: it is buried in a gambling bill before the florida legislature right now. it may be voted on.

captioning funded by cbs it's thursday, february 18th, 2016. this is the "cbs morning news." the thaw in u.s. cuba relations about to take a step forward. president obama will visit the island nation in nearly 90 years for the first in the nation. the debate over privacy and security widens after a judge orders apple to hack into the iphone of one of the san bernardino shooters. learning the hard way. a texas man says u.s. marshals pounded on his door and arrested him, all to collect a student loan debt. and where