assault style weapons, bass pro shops. wal-mart the largest retailer stopped selling the weapons in 2015. ♪

growing up, a lot of people judged me because of the way i look. "i thought all asians were good at math." "you all look the same to me." "no, where are you really from?" "9/11 was your fault." "how do you see out of such small eyes?" "go back to your country." i guess i wish that people knew... we are not all the same. we are not all the same. we are not all the same.

♪ >> announcer: this is the cbs "overnight news." two weeks after the shooting, students returned to marjorie stoneman douglas high school today. adriana diaz is there. >> welcome back. >> reporter: students from stoneman douglas greeted by well-wishers with flowers. for the first time they returned to the school where 17 lives were lost. >> where were you shot? >> in my -- right chest. and then grazed on the back. >> reporter: before the bell rang we spoke to samantha grady. what does it symbolize that you and all of your peers are going back to school? >> strength.

definitely showing that we are overcoming this tragedy. >> reporter: she joined more than 3,000 students who faced their fears. they were protected by a small army of police officers and staff. >> i like how there is a lot of police around here to show everybody is safe. >> reporter: students told to leave their book bags at home. because today was about healing. inside, they were comforted by more than 40 therapy dogs and 150 counselors. tenth grader nicole valazquez lost three friends. >> walking into the class today not seeing them. was like my heart breaking all over again. >> reporter: parkland father andrew pollack was there. he lost his 18-year-old daughter. >> what was it like being at school? >> emotional every second of the day.

going there, i felt, i liked going there, to tell you the truth. got to see kids going back to school. >> reporter: he lobbied the governor for safer schools and spoken directly to president trump. >> i'm pissed because my daughter i am not going to see again. >> reporter: why have you decide to speak out? >> i feel obligated to do it as a parent. feel like it is on my shoulders. i can't allow tight happen again. >> reporter: 95% of the student body showed up for school. the day started with fourth period students could be with classmates they were with during the shooting. the day started first with pledge of allegiance. a 17-second moment of silence. followed by a recording of the school song. jeff. >> for us once again in parkland. thank you. >> a gunshot caused panic today at a high school in dalton, georgia. the police say a social studies teacher, you can see in this video, locked himself inside a classroom. they say when the principal tried to open the door, the teacher fired his handgun out the window. nobody was hurt. but the teacher faces felony charges including aggravated assault and making terroristic

threats. >> we do have an update on the hazmat scare that topped our broadcast last night. preliminary tests turned up no toxic material inclyde an envelope opened at joint base meier henderson hall outside of washington. 11 people felt ill. three taken to the hospital last night. they were later released. turning to syria, bit by bit the assad regime there is wiping out resistance in the western half of the country. government-controlled areas in the red on this map. shrinking rebel portions in light blue. one of the last opposition holdouts near the capital its ghouta, seth doane, the only u.s. correspondent inside syria, reports from government-held territory in damascus.

>> reporter: a steady stream of patients at the state-run hospital in damascus. this, we are told victim of a mortar attack. he was just brought in in the ambulance. >> dr. ali gazi works in the er, often treating civilians caught in sniper attacks or explosions. >> it makes very big stress on the medical teams. >> reporter: he says for the most part this hospital has the what it needs. it is a different story only a couple miles away in the besieged suburb of eastern ghouta, there rebels are surrounded by president assad's forces. hundred of thousand of civilians are trapped. it is impossible for us to cross the line from here in government-held damascus to rebel-held ghouta. so we reached a doctor there by phone. >> we are under siege. >> dr. saker told us he is

operating underground after his hospital was bombed. >> my patients die and i cannot do anything to help. sometimes, when i don't have medicine, when i do not evacuate the patient to icu, to continue the air strikes. a very bad situation for me. >> again today, no medical aid came through humanitarian channels and the doctor has little faith it will. >> they will not send doctors. they send -- >> reporter: the doctors may be divided geographically by the conflict. jeff, they share a commitment to save lives. and a frustration they cannot do more. >> seth doane, remains the only u.s. correspondent inside syria. seth, thank you. >> we are at here at oakland city hall. the mayor is unapologetic and willing to go to jail to protect the sanctuary status. we are here. >> until today they were strangers. now they share an unbreakable bond.

>> six people were saved just because i chose to be selfless for a day.

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♪ >> the battle over sanctuary cities exploded into a public feud between the head of immigration and customs enforcement and mayor of oakland, california now. it started when the mayor tipped off residents about a federal roundup of people living in the u.s. illegally. more on this from carter evans. >> reporter: this video shows one of the 150 undocumented immigrants arrested in a targeted sweep throughout northern california including oakland where the mayor publicly warned the community that ice agents were coming. reaction to the mayor was swift. some calling the office directly. >> reporter: others posting on

facebook, writing people look you make this country much more dangerous. today acting i.c.e. director, did not hold back. >> i have been doing this for 34 years. a whole new low to intentionally warn criminals law enforcement is coming. she gave them warning. 800 unable to locate because of that warning. >> reporter: we are here where the mayor is unapologetic about tipping people off to the immigration roundup. she is even willing to go to jail to protect the sanctuary status. we are here to find out why. >> every day as the mayor of oakland i make decisions that are criticized. that comes with the job. >> now you are being accused of protecting people with criminal records. >> what i did is my job, and reflective of the values of the people i represent. >> under president trump,

arrests are up 42%. while criminal arrests under both were the same. noncriminal arrests saw a 334%% spike under president trump. people took to the streets of san francisco. can i ask you a question quickly? are you willing to get arrested here today? >> i am willing to get arrested. >> the 25-year-old is undocumented living here 17 years. >> has your family changed the way they are living? because of the current climate? >> depression rising in my family. family members no longer want to go out of the household. that is no way to live. >> reporter: protesters don't look like they're leaving. they formed a human chain, locked together and blocked access to the immigration building. ice says deportations will continue as planned. as for tipping off her community, oakland's mayor says, she'll do it again. jeff. >> carter evans inside oakland for us tonight. carter, thank you very much. >> coming up here, marijuana may be linked to a rise in pedestrian deaths.

has been a problem for me. mouth i'm also on a lot of medications that dry my mouth. i just drank tons of water all the time. it was never enough. i wasn't sure i was going to be able to continue singing. i saw my dentist. he suggested biotene. it feels refreshing. my mouth felt more lubricated. i use biotene rinse twice a day and then i use the spray throughout the day. it actually saved my career in a way. biotene really did make a difference. [heartbeat] my dbut now, i take used tometamucil every day.sh it traps and removes the waste that weighs me down, so i feel lighter. try metamucil, and begin to feel what lighter feels like.

the golden state warriors did not visit the white house. president trump withdrew the customer invitation in september after steph curry said he didn't want to go. today, curry said he has no regrets. >> rhetoric and hate and kind of just general disdane from the top. trying to be divisive had the opposite reaction it intended. >> instead of the white house the team visited the african-american history museum with schoolkid. >> there is danger afoot. according to a study, pedestrians are dying in numbers

not seen in 25 years. nearly 6,000 were hit and killed by cars and trucks in the u.s. last year. experts say that smartphones and legal marijuana may be partly to blame. in states that legalized recreational pot, deaths spiked 16% in the first half of 2017. elsewhere, pedestrian deaths were down. in london today, royal couple watchers seeing double. prince william and kate middleton and prince harry and meghan markle made a joint appearance. british media dubbed them the fab four. markle made news voicing support for me too and times up. >> you will here people say you are helping people find their voices. women don't need to find a voice, they have a voice. they need to find the voice and use it. >> william and kate expecting the third child in april. harry and meghan markle are

getting married in may.

we end tonight with a math lesson.

a fun one, heart warming. dean reynolds shows you the result of multiplying a single act of kindness, six times. >> until today, kimberly and brandon were strangers. but now they share an unbreakable bond. what do you say to someone? >> hard to come together with sentences. thank you very much for giving me the freedom to live my life the way i want to live it, not tied to a machine ten hours a night. >> kimberly's kidney lives in brandon's body one of six transplants performed last week at northwestern memorial hospital. each one of them can be traced back to kimberly's act of generosity. >> you are like, my god, really.

six people were saved just because i chose to be selfless for a day. >> this was not necessarily meant to happen. because, well it is complicated. brandon thought he would get his friend phillip's kidney. that didn't match. he ended up with kimberly's kidney. phillip donated his kidney and started a chain reaction. >> i have made a lot of selfish decisions in my life. and i thought that this would be a really great opportunity to kind of amend those decisions. >> reporter: it turned out phillip's kidney was a match for clotilda ruiz whose daughter daisy was rejected. daisy's kidney acted fine for scott rile. so it went until a dozen donors and recipients matched. all met for the first time this afternoon. >> i am going to have a lineage to somebody that will live on. that's more than money and more than word. >> reporter: proving once again that generosity truly is its own reward. dean reynolds, cbs news, chicago. that is the "overnight news" for this thursday. for some of you the news continues. for others check back later for the morning news and cbs this

morning. from the broadcast center in new york city, i'm jeff glor. welcome to the "overnight news." i'm don dahler. two weeks after a young gunman turned a high school into a killing ground. school safety took center stage at the white house. president trump summoned congressional leaders to discuss ways to make the classroom safe. >> i'm not into popularity. >> president trump scrambled the partisan divide on guns, siding with democrats on dramatically expanding background checks, and raising the purchasing age for semiautomatic weapons. semiautomatic weapons. >> it doesn't make sense i have

to wait until 21 to get a handgun. get this weapon at 18. curious what you did in your bill? >> we didn't address it, mr. president. >> you know why, you are afraid of the nra. >> pennsylvania republican, pat toomey. >> my reservation about it is, frankly, the vast majority of 18, 19 20-year-olds in pennsylvania who have a rifle or shotgun, they're not law-abiding citizens. >> president trump clashed with republicans including recent shooting victim, steve scalise when they argued. gun owners need the right to carry concealed weapons across state lines. >> these are people by and large helping us stop crimes. these are people who are well trained, who actually go out and help prevent crimes. >> i'm with you. let it be a separate bill. you will never get this passed. if you add concealed carry to this, you will never get it passed. >> he was lessen newsed about a ban on assault rifles. >> you know the problem, dianne,

this isn't you go into a store. >> you go into a store, you can buy an ar-15. >> you can? >> buy a tech-9. buy all these weapons. >> reporter: the weapons he argued should have been confiscated from the florida shooter even if it meant skirting the law. >> the police saw, they didn't take any guns away. that could have been policing. think they should have taken them away any way, whether they had the right or not. >> reporter: as for banning bump stocks, mr. trump said today he is going to write up an executive order shortly to do it himself. no legislation required. >> another shooting in a school in dalton, georgia, a high school social studies teacher barricaded himself inside an empty classroom and fired one shot. no one was hurt. he is under arrest. but it came on the same day that students returned to a florida high school that was the scene of a massacre. adriana diaz reports. >> reporter: students from stoneman douglas greeted by well-wishers with flowers. for the first time they returned to the school where 17 lives were lost. >> where were you shot? >> in my -- right chest. and then grazed on the back. >> reporter: before the bell rang we spoke to samantha grady.

what does it symbolize that you and all of your peers are going back to school? >> strength. definitely showing that we are overcoming this tragedy. >> reporter: she joined more than 3,000 students who faced their fears. they were protected by a small army of police officers and staff. >> i like how there is a lot of police around here to show everybody is safe. >> reporter: students told to leave their book bags at home. because today was about healing. inside, they were comforted by more than 40 therapy dogs and 150 counselors. tenth grader nicole valazquez lost three friends. >> walking into the class today not seeing them. was like my heart breaking all over again. >> reporter: parkland father andrew pollack was there. he lost his 18-year-old daughter. >> what was it like being at school? >> emotional every second of the day. going there, i felt, i liked

going there, to tell you the truth. got to see kids going back to school. >> reporter: he lobbied the governor for safer schools and spoken directly to president trump. >> i'm pissed because my daughter i am not going to see again. >> reporter: why have you decide to speak out? >> i feel obligated to do it as a parent. feel like it is on my shoulders. i can't allow it to happen again. >> reporter: 95% of the student body showed up for school. the day started with fourth period students could be with classmates they were with during the shooting. the day started first with pledge of allegiance. a 17-second moment of silence. followed by a recording of the school song. a top immigration official blasting the mayor of oakland, california for tipping off undocumented immigrants to a massive roundup over the weeken.

carter evans has that. >> reporter: this video shows one of the 150 undocumented immigrants arrested in a targeted sweep throughout northern california including oakland where the mayor publicly warned the community that ice agents were coming. reaction to the mayor was swift. some calling the office directly. >> reporter: others posting on facebook, writing people like you make this country much more dangerous. today acting i.c.e. director, did not hold back. >> i have been doing this for 34 years. a whole new low to intentionally warn criminals law enforcement is coming. i just can't believe it happened. she gave them warning. 800 unable to locate because of that warning. >> reporter: we are here where the mayor is unapologetic about

tipping people off to the immigration roundup. she is even willing to go to jail to protect the sanctuary status. we are here to find out why. >> every day as the mayor of oakland i make decisions that are criticized. that comes with the job. >> now you are being accused of protecting people with criminal records. >> what i did is my job, and reflective of the values of the people i represent. >> the united nations says a daily five hour cease-fire in the syrian civil war has done nothing to help civilians outside damascus. seth doane is the only western correspondent there. >> reporter: a steady stream of patients at the state-run hospital in damascus. this, we are told victim of a mortar attack. he was just brought in in the ambulance. >> dr. ali gazi works in the er, often treating civilians caught in sniper attacks or explosions. >> it makes very big stress on the medical teams. >> reporter: he says for the most part this hospital has the what it needs. it is a different story only a couple miles away in the besieged suburb of eastern ghouta, there rebels are

surrounded by president assad's forces. hundreds of thousands of civilians are trapped. it is impossible for us to cross the line from here in government-held damascus to rebel-held ghouta. so we reached a doctor there by phone. >> we are under siege. >> we are under siege. >> dr. saker told us he is operating underground after his hospital was bombed. >> my patients die and i cannot do anything to help. sometimes, when i don't have medicine, when i do not evacuate the patient to icu, to continue the air strikes. a very bad situation for me. >> again today, no medical aid came through humanitarian channels and the doctor has little faith it will. >> they will not send doctors. they send -- >> the cbs "overnight news" will be right back.

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president trump's quest for a second term came into focus this week when he named his 2020 campaign chairman. brad parscale was an unknown web designer. his mastery helped donald trump capture the white house. leslie stahl spoke to him for "60 minutes." >> i understood face book is how he would win. twitter how he talked. face book how he won. >> facebook is how he won. >> i think so. i think donald trump won. i think facebook was the highway in which his car drove on. >> reporter: and brad parscale

was in the driver's seat. in the beginning of the campaign he worked alone at home in san antonio. but by the end he had 100 people reporting to him. one of his main jobs was to send out carefully tailored, low-cost, digital ad to millions of people. >> these were ads on facebook? >> facebook, twitter, google search, platforms. facebook was the 500 pound gorilla. 80% of the budget. >> facebook's advertising technology helped president obama in 2012. but today facebook offers something more precise and sophisticated. while the president tweeted facebook was always anti-trump, parscale relied heavily on the company on the cutting edge targeting tools. one of the best things facebook did for you i heard was penetrate the rural vote. its that correct? >> facebook lets you get to places, places possibly never go with tv ads.

now i can find, 15 people in the florida panhandle never buy a tv commercial for. we took opportunities that the other side didn't. >> like what? >> their staff embedded in our offices. >> what? >> yeah, facebook employees would show up for work every day in our offices. >> wait a minute. facebook employees showed up at the trump headquarters. >> google employees. twitter employees. >> embedded in your campaign. >> there, three, four, two day,s five days. >> helping teach us how use the platform. >> i asked each one by e-mail i want to know every single secret button, click, technology you have. everything you would tell hillary's campaign plus some. and your people to teach me. >> inside. >> how do you know they weren't trojan horses? >> i would ask them to be republicans. >> republicans. >> people that swore to donald

trump from their companies. >> that's what you got. >> they have divisions set up. >> what do you mean? >> groups in political divisions, republican, democrat. they're businesses. publicly traded. >> did hillary's campaign have some one? >> they didn't accept any offers. >> facebook and the others offered an imbed, they said no. >> that's what i have heard. >> people in the clinton campaign confirm the offer was made and turned down. face book told us in a statement, for candidates across the political spectrum, facebook offers support in key moments to help campaigns understand how best to use the platform. and indeed both campaigns used facebook's technology to potential voters. used technology to microtarget on a scale never seen before and to customize their ad for >> 100,000 different ad every day. >> average day, 50,000, 60,0

ads. >> all automated. >> changing language, word.en b better than blue button. some people like the word donate more, contribute. >> let's say i like a green button. how do you know? >> i give you red and blue. you ver cl >> he showed us how they tested. by sending out multiple versions of the same ad with only subtle differences. here face of hillary. different colors, blues. messages above. >> send two ads with different colors. >> maybe thousands. what can make people react? what catches their attention. remember so much noise on your phone or desk top. what is it that makes it go, i will stop and look. >> to get people to stop and look, he crafted messages for different people. you got ad about the issues you

cared about most. he showed us three ad that looked alike. >> pretty much identical design. positive colors, different message. >> this one is tax. child care. energy. >> all targeted to different users whatever platform this case was facebook. sent it to different people. could be each other's next door neighbors in ohio. >> one person at 11 elm street gets this one. 13 elm street gets that one. >> parscale took heat for taking microtargeting too far because he hired cambridge analytica, using psycho graphics that microtarget ads based on personality. for instance an extrovert would get one message, a neurotic person another. it is controversial because of orwellian overtones. after mr. trump won, cambridge

analytica said is was key. parscale said he never used psycho graphics. he said it didn't work. you didn't use it because you didn't thing it worked as opposed to you didn't use it because you thought it was wrong, manipulative, or, sinister? >> i don't believe it is sinister. >> you don't think it works. >> i don't think it works. >> his title was digital director. by end of the campaign his portfolio grew. he oversaw data collection, polling, advertising, both online and on tv, and significantly digital fund-raising. by adding donation buttons for people to click on in the online ads, he was able to bring in a record $240 million in small

donations. how many presidential campaigns had you worked on before this one? >> 0. >> your wife has a wonderful expression about you being thrown into this. >> yeah, she said that i was thrown into the super bowl, never played a game and won. >> what it sounds like. >> it made him a local hero back home in kansas. he grew up in topeka playing basketball. he is 6'8." after briefly working at a tech company in california he moved to san antonio, texas and became a marketer. he taught himself to code. opened a small web design business. and went looking for customers. >> i started tapping shoulders at a bookstore. asking people if they need a website. when they were buying books on web design. >> hanging around at a bookstore? >> borders. >> hanging around at borders. >> do you need help? >> can you hire me? come on. >> how did you get involved with the trump people?

>> i was sitting an ihop, eating a ham and cheese omelet. i was. and i opened it up. it says, this is kathy k. from trump org, can you please call me. >> out of nowhere? >> out of nowhere. >> that was sick years ago. she was looking for some one to design a website for a trump real estate project. parscale bid lowest, got the job and soon many more followed. web sites for eric's foundation, melania's skin care line, the family's wineries. then in early 2015, came another life changing e-mail. >> it said donald trump is thinking running for president we need a website in two days. i wrote back, sure, i'll do it for $1,500. >> yeah. >> by the end it was $94 million. >> $94 million is what his company was paid. much of it was spent on things like buying ads. parscale learne very fast on the job, with the help of the republican national committee.

they had amassed a giant database to identify the issues people cared about and predict how nearly 200 million americans would vote. one reason parscale thinks president trump won is because of an issue the rnc database honed in on that he says the clinton campaign missed. infrastructure. >> infrastructure. voters in the rust belt cared about the roads being rebuilt, highways, bridges felt like the world was crumbling. i started making ads that would show the bridge crumbling, that's microtargeting. i can find 1500 people in one town that care about infrastructure. that may be a voter normally votes democrat. >> you can see the full report on our website, cbsnews.com. the "overnight news" will be right back. e. try align extra strength, the #1 doctor recommended probiotic brand. with 5 times the good bacteria to re-align your system. re-align yourself, with align.

in the debate over gun control one segment of the industry goes unnoticed. ghost guns. manufacturers are allowed to sell all the parts to a weapon and as long as the buyer puts the gun together himself, there is no need to register it or apply for a background check. ghost guns have no serial numbers and there is no way to trace them. it is all perfectly legal. carter evans bought a kit online. >> reporter: this handgun looks and fires like a glock 9 mm. it has no serial number,

untraceable and legal. it is known as a ghost gun. we bought one online with no background check or waiting period. it is not technically a firearm because the the part that would be registered, the lower receiver still needs work. the do it yourself kit came with all necessary parts even the drill bits and plastic template showing exactly where to drill the holes. not going to take a tremendous amount of gunsmithing skill. >> reporter: former swat officer agreed to supervise while i build. >> moving black tabs. >> reporter: following a youtube video it took less than three hours to build. how did i do? >> looks like pretty well for a novice. >> reporter: after a safety check and test firing, he put the gun through its paces. >> feel all right? >> yeah. >> guest gun. unregistered.

>> reporter: countless web sites offer ghost gun kits from handguns to ar-15s and ak-47s. >> try to appeal to felons can't go to a gun store and purchase a firearm. or people that don't want the government knowing. >> atf agent dave hamilton showed us ghost guns. many off the streets. they recently took 46 at a raid at a single home. ginger colbrin is with the atfs. >> firearms with gang members, found at crime scenes all over the country. >> police say unregistered guns were used last november when kevin neil killed five in a northern california shooting spree. in 2013 when john zawari shot and killed five. >> why can't the atf shut down people selling these parts? >> atf can't shut down the people, these parts are not regulated. >> there is no limit to number of ghost guns one person can own. >> it's up to the companies. >> authorities are beginning to see ghost guns show up at gun shows. it is a 50-year-old law makes it legal to own ghost guns and would take an act of congress to change that.

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cross-reference with incoming calls to banks

in this age of texts and e-mails and media, most people have little use for sending notes that require a postage stamp. steve hartman has the story of one dad dedicated to the art of the postcard. >> reporter: generally speaking postcards, write what you will, the core message is the same. i am on vacation, you are not. wish you were here. if they really wished you'd were there they wouldn't have left you behind. but in georgia, we found a man who is bringing a certain sincerity to the petty postcard. his campaign started in 1995,

david had dropped off his oldest daughter at college. she was going to notre dame and he was going to mush. >> because i cried from south bend, indiana to elizabethtown, kentucky with the family in the car when i left her. i missed her. >> reporter: that night he sent her a postcard. just as he has done virtually every day since. for all four of his kids. any day they're not with him he sends cards. nearly 20,000 over 20 years. his daughter sarah who lives in georgia has actually saved them all on strings and racks and in cabinets. >> nothing i love more than a picture. >> almost every card is unique. on front and back. >> uncle ben's rice box. >> what did he say? >> whole lot of talk about gardening and football. >> apologies to your dad, but that sounds boring. i mean, come on. >> i need a hard lace up shoe. >> who cares what happened.

>> he taped my foot and said for me to wear my shoes all the time. >> i don't know if they read the cards anymore. >> reporter: he doesn't mind if they don't. david says this was never conveying new information. this was always repeating the same message over and over and over again. >> when i'm gone they'll know their daddy loved them. >> i think they know that now. >> you know, when life gets tough. it's nice to know somebody loves you no matter what. >> a good reminder after this week esplly, to tell your kids you love them as daily and creatively as you possibly can. steve hartman, on the road in georgia. that's the "overnight news" for this thursday. 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 don dahler.

captioning funded by cbs it's thursday, march 1st, 2018. this is the "cbs morning news." hope hicks is out. one of president trump's most trusted aides resigned from the white house. plus, in the wake of the florida school shooting, mr. trump takes a hard stance on guns, stunning the nra and fellow republicans. >> it doesn't make sense that i have to wait until i'm 21 to get a handgun but i can get this weapon at 18. and this. >> we've got an announcement to come. they said an active shooter. >> a georgia school goes