>> reporter: imagine the terror. never knowing where and when the warplanes will hit next. we can't independently verify these videos, but they appear to show the aftermath of air strikes on the town of tel rifaat this week. in the syrian regime's new offensive, which is backed by russian air power, civilians are once again paying with their blood. crossing the border into turk y we met abdul kahrim bahloul, who runs a school in tel rifaat. the shelling and air strikes are random, he told us. homes are destroyed and children's bodies lie in shreds

on the grounds. he told us he came to ask the turkish authorities to give refuge to children from the town. but after absorbing more than 2 million syrians, turkey is reluctant to let any more in. syrian regime forces have now nearly encircled the city of aleppo. the u.n. fears that 300,000 civilians could be cut off as they were in the town of madaya, during a siege by the regime. more than 40 starved to death. dalia al awqati that her charity, mercy corps, feeds and clothes half a million people in northern syria each month. >> it's not much. >> no, but it's essentially to keep a family alive. >> reporter: now they're racing to get food parcels to families in aleppo city, fearing more starvation in a country that's already exhausted by a senseless war. and if syria's war wasn't complicated enough, today some

american-backed rebels told us they were attacked by kurdish fighters, who were also supported by the u.s. now, the kurdish fighters say it wasn't deliberate, but, scott, this shows just how difficult it is for the u.s. to unite different faxes on the ground in syria. >> holy williams, thanks. so, what can the u.s. do to stop the war? for that we turn to margaret brennan. margaret? >> reporter: well, today, the u.s. is trying to broker an immediate cease-fire. secretary kerry pushed russia and iran to stop attack in aleppo and let in aid to bee sieged areas. vladimir putin's military has cut off supply lines to the u.s.-backed rebels, and u.s. officials warn that that strengthens both isis and assad and it leaves the u.s. with little leverage in a war president obama has resisted getting involved in for five

years now. >> margaret brennan at the white house, thank you. today cleveland mayor frank jackson apologized to the family of tamir rice after the city billed his estate $500 for ambulance services. the city also tore up the bill. in 2014 a cleveland cop shot rice who was 12. he was holding a gun that turned out to be a toy. he died the next day at the hospital. the officer was not charged. in a big development today, scientists have announced what may be monamong the greatest discovery in the history of physics. they believe they found gravity waves predicted by einstein but two huge antennas, one in washington state, the other in louisiana, detected a gravity wave last september. this confirms einstein was right when he described the universe as like a fabric, woven from the

three dimensions, plus time. what physicist call space time. the gravity wave was set off sending a ripple through the air. so tiny one scientists saying the ripple consisted the entire milky way galaxy about the width of a thumb, observing the fabric of the universe stretches and opens may open an entirely new understanding of nature. coming up next -- how explosions like this are improving airport security. and a scoop by a newspaper and a scoop by a newspaper sets off an parking is hard to find. seems like everyone drives. and those who do should switch to geico because you could save hundreds on car insurance. ah, perfect. valet parking. evening, sir. hello! here's the keys.

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more professional and effective force of airport screeners. kris van cleave is in glenco, georgia, tonight at the tsa's new training academy. >> reporter: seeing the power of even a small explosive made the threat real for nearly 200 soon-to-be airport screeners. >> two, one. >> reporter: they're going through a new training program here in georgia designed to address troubling security gaps within the transportation security administration. a damning report by homeland

securities inspector general show screeners failed to detect 67 of 70 suspicious items brought through airport checkpoints. peter neffenger became the inspector general. shawn weeks-freeman is one of the academy instructors. she was a flight attendant on pan-am flight 330 standing where the 737 was preparing to land in honolulu. >> when i talk to my class, i tell them, you're not here by accident. and i wasn't saved at that moment by accident because that threat in 1982 is today's threat still. >> reporter: the academy marks the first time all transportation security officers will have standardized training. previously new hires were largely trained on the job at their home airport. >> the ig, if they're going

through checkpoints today with one of their teams trying to bring things that should be flagged, will those things be caught. >> i think we'll catch them today. >> reporter: all of them? >> i don't know. i sure hope we catch all of them. >> reporter: the students will work at this mock checkpoint. it's complete with all the equipment, scott, they're going to use in the field. >> thanks. and we'll be right back.

a small catholic university in maryland is in turmoil after a report that its president wanted to weed out struggling students quickly to improve the school's standing. some professors had been sent packing. here's chip reid.

>> reporter: ed egan was a professor at mt. st. mary's university in maryland. what would you normally be doing on a day like this? >> i'd object campus today. i'd be teaching my class on the first amendment. >> reporter: but on monday he was fired in a letter a school official said he is per sona non grata and not welcome to visit the university's campus because he violated his duty of loyalty to the school. it all began last month when the student newspaper reported that the school president simon newman wanted professors to identify struggling students in the first few weeks of school so they could be encouraged to drop out. some faculty members resisted and the school paper reported that newman told them, this is hard for you because you think of the students as cuddly bunnies but you can't.

you just have to drown the bunnies. put a block to their heads. many students and faculty were outraged. it's not just the words but it's the plan that the words described. >> reporter: what's wrong with the plan? >> weeding out students because we think they might not do well in order to make the numbers look better. that's not mt. st. mary's. >> reporter: egan was the faculty adviser to the school paper and says he's being punished for accurate but embarrassing reporting by the students. you did not tell them what to write? >> no. i did not. not in any way. >> reporter: they can't be manipulated. they are independent, strong, bright people. >> reporter: a petition protesting the firing of egan and another professor has been signed by about 7500 professors and across the country and the university declined our repeated questions for interview. ,,,,,,,,,,,,,,

our final story is written on the face of a young child, whose joy mere words cannot describe. here's elaine quijano. >> elsa had magical powers and could create things out of snow and ice. >> reporter: 4-year-old mattie zapata can't get enough of her books on tape because the voice is her mother's, mandi balderas, locked in a prison four hours away. >> i tell her how i missed her. >> even though i'm not there physically, i know she's listening to my voice, spending time with me.

>> reporter: each month while balderas and other selected inmates record a story and send it home. it's called storybook project and runs in six women's prisons across texas. >> it was a sunny afternoon at the end of may. >> this begins within the walls of a castle. >> we weren't scared as long as we were together. >> reporter: 64% of incarcerated women nationwide lived with their children before prison. storybook tries to ease the pain of separation. >> if you put your hand in mine, you feel love powers. >> reporter: mattie was 18 months old when her mother went to prison that killed the other driver, a crime of manslaughter that victimized her daughter, too. >> i cry for mommy. >> how come? >> because i miss her. >> if it wasn't for the books, she wouldn't be able to have the bond that we have now. i know that means something to her and i know it means something to me. >> reporter: but the fact s you got behind the wheel of a car

when you had alcohol in your system and a person is dead because of that. didn't you forfeit your right to do things like this when you made that decision? >> yes, i made a decision. but it's not about the decision anymore. it's about how we handle the circumstances. that's how i'm choosing to handle the sishs, by helping my kids the best i can from where i'm at. >> hey, mattie, it's me, mommy. >> reporter: balders has four years left of an eight-year sentence. when she finally re-unites with her family, she hopes her children won't mistake her voice for a stranger's. >> you are my sunshine, my only sunshine -- >> reporter: elaine quijano, cbs news, columbus, texas. >> i love you always, mommy. and that's the overnight news for this friday. for some of you, the news continues. for others, check back with us later for the morning news and for "cbs this morning."

from the broadcast center in new york, i'm scott pelley. this is the "cbs overnight news." hello and welcome to the overnight news. the federal government is warning a possible shortages of test kits for the zika virus. the tests are designed to let pregnant women know if they've been infected by the virus that can cause severe birth defects. the cdc is shipping test kits but admits there may not be enough to go around. the virus is mostly spread by mosquitos. those in southern states are especially vulnerable. and the cdc is warninging of a widespread outbreak in puerto rico. women who are thinking about getting pregnant are to avoid traveling to latin america, especially brazil.

brazil is hosting the summer olympics and that puts america's female athletes in a bind. >> morgan in the box with that and they're on the board. >> reporter: world class female athletes, including members of the u.s. women's soccer team are raising safety concerns ahead of this summer's olympics in riodee janei janeiro. earlier this week star player alex morgan called the virus a very scary thing and goalie hope solo saying it's possible she might skip the games. >> all i can do is speak for myself. if the olympics were today, i wouldn't go. we have six months. we have a little time to figure things out. >> our goal really is to protect pregnant women. >> reporter: the cdc says it's working nonstop to gain control over the rapidly spreading virus. suspected ties between the virus and the birth defect microcephaly appear to be strengthening. on wednesday the cdc reported that zika was found in the brain

tissue of two brazilian babies who died from microcephaly less than 24 hours after birth. >> the strongest evidence today that zika is the cause of microcephaly but it's still not definitive. >> reporter: the new england journal of medicine cited a separate case. according to the report, a 25-year-old woman living in slovenia chose to have an abortion after learning the child she was carrying had severe developmental abnormal y abnormality. the woman who had been living in northern brazil showed zika symptoms during her pregnancy. officials say the virus is spreading quickly because the aedes aegypti, which transmits the disease, is difficult to eradicate. >> the eggs can be drought-resist end and persist for some time. and it can bite four or five people in the course of one blood meal, meaning it can spread disease quite quickly. >> reporter: according to the cdc, a zika vaccine could be

available by the end of 2017. meanwhile, a group called catholics for choice is asking pope francis not to condemn contraception or abortion in order to protect the women. the department of homeland security is taking steps to ensure airport screeners are properly trained. for the first time the transportation security administration will start training all screeners at one centralized academy, sort of a tsa boot camp. kris van cleave reports from glenco, georgia. >> this checkpoint is the centerpiece of the new tsa academy and the two-week training course. this gross out of a top to bottom review done by the agency that found gaps in training and proficiency on equipment like this. the new training academy ames to change that. an explosive lesson on the dangers these soon-to-be airport screeners will be asked to help prevent.

>> this is a explosive -- >> reporter: the nearly 200 students assembled are some of the first to go through the new tsa training academy. >> it's controlled chaos. it's very difficult job. >> reporter: among those, 19-year-old yasmin. >> it's a challenge but rewarding challenge. >> reporter: this is the first time since the agency's creation after 9/11 that the tsa has centralized training of newly hired trainers who make between $31,000 and $45,000 a year. previously they were trained on the job at the airport they work. the academy opened in january as the tsa tries to recover from a series of high-profile embarrassments, including two officers allegedly groping passengers in denver and where screeners failed to cast 67 out of 70 tests. peter neffenger took over aadministrator following that report. >> i tried to refocus on the

mission. what is a screener's job is to ensure something that doesn't get past the checkpoint doesn't get past. >> reporter: do you think we'll catch -- all of them? >> i sure hope we catch all of thempy my tests show we have dramatically improved. >> reporter: can you show us your finding? >> i won't publicly because this goes to -- >> reporter: i'm talking about the vast majority? the majority? >> majority. >> reporter: for shawn weeks-freeman, the success of the screeners trained here. she was a flight attendant on pan-am in august of 1982 and a few row as way when a bomb went off on board. a 16-year-old passenger died. more than a dozen others were hurt. >> when i talk to my class, i tell them, you're not here by accident. and i wasn't saved at that moment by accident. because that threat in 1982 is today's threat still. >> royal caribbean's "anthem of the sea" is undergoing repairs

and inspection at a dock in nj nmg. the ship sailed into a massive storm last week on its way to florida and had to limp back to port. passengers describe a terrifying trip and there are calls for a federal investigation into why the ship set sail in the first place. reporting from cape liberty. >> reporter: this gives you some idea of the enormity of the ship. look at the size of this thing. that tells you something about the size of the storm that ran into that tossed this around like a paper cup. last night passengers streamed off, some were cheering, some were kissing the ground. who can blame them when you think about what they went through. beatened, battered but hoim royal caribbean's "anthem of the seas" caped back into cape liberty last night. >> free at last, free at last! >> reporter: putting an end to the terrifying trip. but as some of the 4500 passengers poured out of the

storm-damaged cruise line. >> awful experience. awful. >> reporter: frustrations boiled over. >> we thought we were all going to die. >> the worst part was the fear and the lies because we were told over and over we were in good shape. >> the reality is we shouldn't have set sail. >> we were trapped in a room for 17 hours. like a roller coaster you couldn't get off of and you weren't strapped in. >> reporter: royal caribbean is facing criticism for going forward with the trips despite the forecast. a senior vice president with the cruise line says the strength of the storm caught them offguard. would you say the captain ultimately made a mistake in deciding to go ahead with this voyage? >> if we knew that winds of 125-mile-an-hour sustained were going to be in that yashgs we never would have gone. there's no question about it. >> reporter: but after reviewing weather reports for the area, a former cruise line captain told us the ship never should have set sail. >> there really was absolutely no way that ship was going to

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the mars reconnaissance orbiter is capturing dramatic new scenes from above the red planet. you can see craters, icy polar dunes and even a possible landing site. nasa's next project is called mars 2020. jan crawford was allowed in the room at the jet propulsion laboratory in pasadena, california. >> everyone that goes in this room has to be suited up because they can't risk any contamination to this spacecraft is going to mars in four years with an unmanned rover that's going to explore the surface. this is all part of nasa's plan to send humans to mars in the next 20 to 30 years. this is what you have to do when

you go into a room with a spacecraft headed for mars. wow. that is going to be on the surface of mars? that? >> absolutely. >> lift-off of the atlas 5 with curiosity. >> reporter: it's 200 million miles away, a speck in the sky. and in just four years, this spacecraft will blast off for an unmanned mission to the red planet. it's a crucial step toward nasa's goal of some day sending humans to mars. so everyone that works on this has to wear these suits. nasa agreed to let us go inside the clean room, where even engineers working on the spacecraft have to be covered head to toe. >> it needs to be cleaned in order to work properly and it's going to the surface of mars. we can't have earth stuff going there. we don't want to contaminate mars. >> reporter: for generations, mars has been a source of fascination. >> we can be on mars within 24 hours.

>> reporter: a favorite of hollywood. >> 4.5 billion years, nobody here, and now me. >> reporter: but here at the jet propulsion laboratory, it's no longer science fiction but cutting-edge science. this piece of metal will be a sophisticated landing system for mars 2020. what all is put on this? >> the most important part that gets put on is the propulsion system, our rockets. >> reporter: yeah, that's pretty important. this animation shows how it will slow down the spacecraft. and gently drop an suv-sized rover onto the surface of the planet. nasa used the same technique in 2012 to land the curiosity rover. >> we're at 150 meters per second. >> curiosity is the first rover to really confirm that mars was a habitable place.

>> reporter: steven lee is the deputy project manager for curiosity. this is a replica here at the mars yard. >> curiosity really is the parent of mars 2020. >> reporter: so, this is like the mom and daddy. >> the mom and daddy, exactly. >> reporter: the next generation rover will be loaded with a lot more technology. like higher resolution cameras and an advanced robotic arm and drill. >> this is the rock room. >> reporter: which deputy manager says will help search for signs of martian life. >> we're going to drill core and make small samples of rock that we'll leave on the surface. we hope future missions will get those samples, bring it back to earth so earth scientists can study those samples. >> reporter: we've never gotten anything off the surface of mars. and for the first time, nasa will test missions that future astronauts would use to survive their journey. in this room, what you're doing,

could determine whether or not humans make it to mars in the near future. >> using this technology, that's absolutely true. and -- >> reporter: that's a lot of pressure. >> it is. we try not to think. >> reporter: they are working on how to turn the martian atmosphere into atmosphere, for astronauts to breathe and use as fuel. >> inside this chamber is the pressure. >> reporter: this experiment is critical because astronauts couldn't bring enough oxygen from earth to last for what will be a three-year mission. >> if you want to go to mars as a human or if you want to launch a rocket from mars to bring a sample back, you need oxidizer to do that. ♪ if i could fly >> reporter: all making this upcoming mission a giant leap for human travel into deep space. ♪ and down below >> reporter: do you think that some day humans will be on mars? >> oh, without question. >> reporter: without question? >> absolutely. >> eventually we'll be able to

overcome all the challenges that are ahead of us. >> reporter: that seems crazy. seems like a movie. >> crazy but certainly a wonderful goal. >> reporter: a goal generations in the making. now closer than ever. do you ever think, like, that is 200 million miles away? >> it's sometimes just amazing to imagine that we've built such a large system, so much complexity that's so capable and we send it on a rocket. when you go out in the morning and you look and it's a point of light in the sky. >> reporter: now for all those kids out there who are going out at night and seeing that point of light in the sky, they could be the first humans to step foot on mars. and this spacecraft carrying that rover for all that important research will pave the way to get them there. (sounds of birds whistling)

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that's why there's woolite darks. it's free of harsh ingredients, keeping dark clothes looking like new for 30 washes so your love for dark clothes will never fade. woolite darks. music will gather in los angeles tomorrow to honor four-time grammy winner lionel richie. he's being honored for his remarkable career. >> lionel ritchie's peers will honor him, rihanna and is expected to raise millions for charity. it's a huge honor for ritchie and i got to spend an after with him singing those time-honored

songs. i can tell you at 66 he's definitely still got it. ♪ ♪ morning's just a moment away ♪ and i without you once again >> reporter: he's responsible for some of the most iconic songs of the past five decades. ♪ you're once ♪ twice three times a lady >> sing it now! >> reporter: let's just say, it's hard not to sing along with lionel ritchie. ♪ yes you're once everybody! ♪ twice three times a lady >> the best thing that ever happens, the music stayed around. it stuck. we're talking about the third generation of folks are now sitting in the audience. >> reporter: and you've been going now, okay, i don't want to

date you here -- >> no, no, 230 years, i know. since '73. >> reporter: born and raised in tuskegee, alabama, ritchie led the come adores to the top of the charts in the 19 0s. ♪ she's a brick house >> reporter: he went solo in 1982 and became a superstar. ♪ say you say me >> reporter: dominating popular music with 13 consecutive top ten hits, including five number ones. ♪ oh what a feeling when we're dancing on the ceiling ♪ ♪ all night long >> reporter: ritchie had no formal music training. he says he just somehow knew how to write songs by ear. ♪ >> so, i don't know why i know how to play that. it's just that i can play that. ♪

>> and so, trying to explain it to you is harder than trying to -- than just playing, because there's no real -- ♪ >> reporter: you can't stop just there. come on -- >> but you got to know that -- ♪ sail on down the line about a half mile or so ♪ ♪ and don't really want to know where you're going ♪ ♪ where you're going ♪ maybe once or twice time after time we tried ♪ ♪ but now we're going ♪ and i don't mind about the things you're going ♪ >> reporter: of his many hits, this may be ritchie's most famous line. ♪ hello is it me

you're looking for ♪ >> reporter: of course, when adele released her new sing, the similarity was hard not to hear. ♪ ♪ hello it's me >> reporter: the internet didn't waste any time spoofing the two hit songs. ♪ hello hello is it me you're looking for ♪ >> reporter: let's talk about "hello." who owns it, you or adele? >> well, i was here first. no, no, listen. first of all, there's only so many ways you can say hello. so many people call me, rich, the goal stole your song. the girl stole your word. no, i don't own hello. ♪ hello >> reporter: there are one-hit wonders. people who are hot and blazing and are gone in a minute. >> yeah. it's not an easy business.

ego is the first part that kills you. the second part of it is just the stress. it's the stress. because can you outdo your last show? i bet you can't do that again. >> reporter: so, how did you do it? >> i did it again -- >> reporter: but how did you deal with the stress? >> i kept going back to the alabama. we weren't keeping up with the joneses in alabama. we were just keeping up with the comodores. we weren't at the clubs, hanging at the club scene. my grand month said, just don't drink any of that dope. i said, grandma, i promise you i won't drink any dope. i promise you. >> reporter: instead, ritchie was focused on making music and giving back. >> as i started gaining a bit of success, then it was even more apparent that, you know, how do i give a voice to the voiceless? >> reporter: he did just that when he and michael jackson sat down to write "we are the

world." ♪ there comes a time when we heed a certain call ♪ >> reporter: the remarkable collaboration raised more than $60 million for humanitarian aid in africa. ♪ we are the world we are the children ♪ ♪ we are the ones that make a brighter day so let's start giving ♪ >> reporter: this year music cares is paying tribute to ritchie for both his musical contributions and decades of charitable work. >> i said, i'll receive this award if it doesn't mean good-bye because, as far as i'm concerned, i'm just getting started now. ♪ all night long ♪ all night >> reporter: all night long. ritchie puts on a great show and his resistcy at planet hollywood in vegas begins april. in addition to start's music cares tribute, big stars will be

joining ritchie at the grammys. ♪ yes you're once,,,,

the hunt continues in the florida everglades for those giant pythons. mark strassmann is there. >> reporter: in the florida everglades, this is basking season for burmese pythons, when the cold-blooded snakes seek out the warmth of the sun. >> there's a lot of native plants we should be aware of. >> reporter: tom's team is hunting for snakes. burmese pythons are an invasive species and an evasive one. tom, one of the team. >> reporter: it's a challenge, though. >> it is a challenge. >> reporter: burmese pythons average about eight feet and camouflage themselves in more than 1 million acres of sawgrass

here. rayhill is known as the snake whispers. >> i've got over 300 captured personally. >> reporter: he tracked down his first burmese in 2008 and was hooked. >> you go into an alpha predator mind set. if you don't, you could get hurt conceivably. >> reporter: first, they bite. >> if hundreds of sharp, razor-sharp teeth, you just have to breathe deep and just let it release on its own. if you pull away from a python when it bites you, your arm is going to be shredded. >> reporter: and big burmese can also coil and crush you. >> i had ahold of a 17-foot python a number of years back. totally ecstatic. this is great. i had a hold of it like i was a feather on a freight train. >> reporter: a big burmese can swallow a deer. in this video, the alligator inside the python's stomach was so big the snake actually exploded. like the population of the

snakes in the everglades. a female can lay up to 100 eggs. >> there could be tens of thousands to hundreds of thousands of snakes, we just don't know. >> reporter: penny works for the florida conservation company. some pet owners release the burmese into the wild when their snakes grew too big. >> they don't have any natural predators in the state of florida. >> reporter: for help removing them, florida's fish and wildlife started the python challenge. top prize, $5,000. rayhill is competing with his group of volunteers called the swamp apes. they grab a burmese by the neck, behind the jaw and let it wear itself out and then drop it into this bag. they can deliver it dead or alive to wildlife officials. mark strassmann in the florida everglades. that's the "overnight news" for this friday. for some of you, the news continues. for others, check back a little later for the morning news and

"cbs morning news." from the broadcast center in new york city. captioning funded by cbs it's friday, february 12th, 2016. this is the "cbs morning news." campaign 2016 democrats take center stage in another debate, but the republicans snag a few headlines of their own and a few young fans. polar plunge. the lowest temperatures of the winter are heading to the northeast with forecasters warning the cold could kill. restaurant rampage. several people are hurt when a man wielding a machete goes on a violent spre. the ocean doesn't see