back here on "eyewitness news" captioning sponsored by cbs >> ninan: the president heads home to growing a growing political firestorm. president trump wraps up his first overseas trip, addressing u.s. troops in italy. >> thank you very much. >> ninan: back home there are new questions about his son-in-law's relationship with the russian government. also tonight, thousands are going nowhere after a major computer glitch causes british airways to cancel flights from london. an oregon man is accused of stabbing two people to death in an anti-muslim raid. the game-changing video game aimed at steering kids away from street violence. >> playing this game, it gets personal. >> ninan: and we remember southern rock pioneer gregg allman. ♪ yes, i know. you won't stay ♪ without melissa

this is the "cbs weekend news." >> ninan: good evening. i'm reena ninan. after flying more than 15,000 miles in the past nine days, president trump returns from his first overseas trip tonight. mr. trump met with dozens of world leaders, discussioning terrorism, trade, and climate change. he comes home to new questions about a key member of his inner circle and their relations with russia. margaret brennan has been traveling with the president. last stop, the g-7 summit in taormina, italy. >> i think we hit a home run no matter where we are. we're thrilled to be here right now, and we're getting on that very big plane. and we're heading back to washington and the united states. >> reporter: president trump used a visit with u.s. troops at an air base in sicily to declare his first foreign trip a victory. pointing to a $110 billion arms deal in saudi arabia and pledges of counter-terrorism support from partners as his key

victories. >> we're going to have a lot of strength, and we're going to have a lot of peace. >> reporter: the president presented himself as a disruptor, not a diplomat. he was the only ford leader at the g-7 summit not to commit to the 2015 paris climate change agreement. the president tweeted he'd put off this decision for another week. the trump administration remains deeply divided on the accord, which put limits on greenhouse gas emissions. america's closest allies, including japan, germany, can dark france, italy, and the u.k., all issued a commune kay, saying the u.s. was "not in a position to join consensus." that frustrated german chancellor angela merkel, who described the discussion as "very difficult if not to say very dissatisfying." the white house declared the summit unbelievably successful. diplomats in meetings with mr. trump told cbs news that he was very quiet and mainly in a listening mode. not so on the president's

america first trade policy or at nato, where the president pushed america's military allies to boost their own spending on defense. >> money is starting to pour in. it's only fair to the united states. we want to be treated fairly. an we're behind nato all the way. but we want to be treated fairly. >> reporter: it isn't clear what money president trump was referring to, as nato members do not pay the u.s., a question that reporters could not ask mr. trump since he skipped the usual presidential press conference typically held at the end of a first foreign trip. at the end of this nearly nine-day foreign tour, president trump leaves with apparent cracks in the u.s. alliance with the world's most powerful democracies and touting much closer ties with saudi arabia and the muslim world. reena? >> ninan: margaret, thank you. well, now to those new questions about president trump's adviser and son-in-law jared kushner and his dealings with rush. errol barnett has the latest from the white house.

>> he is so great. if you can't produce peace in the middle east, nobody can. >> reporter: speaking on the eve of his inauguration, president-elect donald trump praised his 36-year-old son-in-law and adviser jared kushner. kushner, a core pillar of trump's inner circle, had been operating as the chief conduit between president trump and foreign officials during the campaign. reuters is reporting of at least three previously undisclosed contacts at that time between kushner and the russian ambassador, sergey kislyak. the "washington post" claims kushner was interested in establishing a back channel of communications with the kremlin. the f.b.i. is already scrutinizing kushner's russian contacts but has not accused him of any wrongdoing. among the communications is a december meeting with the russian ambassador and a follow-up with sergey gorkov, the chairman of russian state-owned bank v.e.b. that bank is currently sanctioned by the united states. democrats like california's ted

lieu now want the president's trustedded adviser punished. >> he's now in a compromisable position. he needs to have his security clearance suspended. >> reporter: in a statement responding to the reuters' report, kushner's attorney said, "mr. kushner participated in thousands of calls in this time period. he has no recollection of the calls described." trump associates already facing f.b.i. scrutiny include former campaign chairman paul manafort, former national security adviser michael flynn,, former foreign policy adviser carter page, and long-time trump friend roger stone. now, jared kushner's lawyer also says they have requested dates of the alleged undisclosed russian contacts so they can investigate. meanwhile, former f.b.i. director james comey, who has agreed to testify in front of the senate intelligence committee is still coordinating when to do so. reena? >> ninan: thanks, errol. a major computer glitch forced british airways to cancel all flights from london's heathrow and gatwick airports today. the airline says there is no

evidence of a cyberattack. officials say the outage was likely caused by a power supply issue. the computer failure stranded thousands of flyers during a big holiday travel weekend in britain. flights are expected to resume sunday, but it will be a while before the airline is back on schedule. three more people were arrested overnight in connection with the bombing last week at an ariana grande concert in manchester, england. 22 people were killed along with the suspect, who blew himself up. isis has claimed responsibility. jonathan vigliotti is in manchester with the latest. >> reporter: police this weekend raided a home in manchester as british officials said they rounded up the majority of the bomber's known associates. >> very significant these arrests. we're very happy we've got our hands around some of the key players that we're concerned about. there's still a little with bite to do. >> reporter: searches are still taking place at hand. of locations around the city as the investigation takes shape,

the threat level was reduced from critical to severe. prime minister theresa may cautioned people not to let their guard down. >> the public should be clear about what this means. a threat level of severe means an attack is highly likely. the country should remain vigilant. >> reporter: authorities are still trying to answer several key questions: did attacker salman abedi receive help making his bomb? were more explosives produced? and are there plans for another attack? despite the reduced threat level, prime minister may says the army will continue to patrol the streets until tuesday, when they will gradually be withdrawn. jonathan vigliotti, cbs news, manchester. >> ninan: at the start of the muslim holy month of ramadan, police in portland, oregon, say two men were stabbed to death on a train friday when they confronted a man who was yelling anti-muslim slurs. carter evans has the latest.

do it then! >> reporter: 35-year-old jeremy christian taunted police after allegedly stabbing multiple passengers on a commuter train. >> one was stabbed in the neck and the other in the side. >> reporter: witnesses say it all started when the suspect went on a racial rant against two muslim women. >> i just heard his voice yelling to these lady, "you can't be in my country. this is my country." >> reporter: when passengers tried to intervene, christian allegedly pulled a knife and stabbed them. two men were killed. a third was seriously injured. >> i saw the guy that was stabbed in the neck that was bleeding. i was so scared. >> reporter: the southern poverty law center says christian promotes extremist views on his facebook page. police took him enter custody without further incident, but investigators still have not confirmed a motive. did he have a plan? was this a person who snapped or was under the influence and armed with a knife? jeremy christian is being held on murder and weapons charges. reena, he's expected to be in

court on tuesday. >> ninan: carter evans, thank you. with violence against police officers on the rise, a growing number of states are passing so-called blue lives matter laws. texas is on the verge of joining louisiana and kentucky as the third state the classify violence against officers as a hate crime. similar legislation is also pending in more than a dozen other states. tony dokoupil looked into this. [sirens blare] >> reporter: when a sniper opened fire in dallas last july, heidi smith's husband was one of five officers killed. >> just because he wore the uniform, he still came home to us every night. >> reporter: now smith is afraid more police will be targeted. >> i was in downtown dallas going to an event with my children. i was scared the whole time at night to be in a patrol car. >> reporter: what were you worried about? >> someone walking up and shooting us. >> reporter: a hate crime? >> yes. >> reporter: 135 officers were killed on duty in 2016, the

highest total in five years. of those, 21 officers were ambushed, the highest total in more than two decades. >> this is the building. this is el centro, the college. >> reporter: that's why texas state representative jason valaba introduced a bill to give the blue uniform itself protection. >> now we're seeing attacks on police officers based solely on one thing -- their status as police officers. i think that's what is important about this legislation. >> reporter: there are people who would say it cheapens the category, that hate crimes are supposed to stop bigotry. >> i think you can call the attacks that we've seen against our police officers clearly within the category of bigotry. when you attack a police officer merely because they are doing their job, we must respond in the same way that we would protect those who are of a different color. >> reporter: jeffrey robinson is a human rights attorney with the america civil liberties union. he argues that crimes against police are already well prosecuted. >> in fact, we have supported, as we should, our law

enforcement officers. so to suggest that police officers should somehow be protected by a hate crime is to misunderstand what a hate crime is. >> >> reporter: even if every state in america protected police officers as a group with hate crime law, you don't think there would be any drop in killings against police? >> there would be no drop in killings of police whatsoever. what that response does is to ignore the reality. you want to talk about training, culture and accountability and changing those things in policing, that's going to be hard. that's going to take effort. and people don't like to talk about that, but that's where we are. >> reporter: heidi smith believes the legislation will give police the protection they need to do their job. would it be a validation of mike's life to have this bill passed? >> absolutely, and the other four officers, as well. >> reporter: texas governor greg abbott is expected to sign the new bill into law, but while many states are moving closer to

doing the same, critics say the only way to make police work truly safe is better training and a deeper relationship with the community. >> ninan: thank you, tony. legendary rocker gregg allman died today at his home in savannah, georgia. sweet melissa the soulful singer-songwriter cofounded the allman brothers band with his brother duane. he battled liver cancer for several years and stopped performing six months ago. his new album is scheduled to come out in september. gregg allman was 69 years old. coming up next, we're on the front lines of the food crisis in war-torn syria. ys to manage my symptoms. i thought i was doing okay...

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>> ninan: this past week the battle for raqqa intensified. forced backed by the u.s. military are trying the drive isis out of its stronghold in syria. meanwhile, our seth doane visited workers with the world food programme who were on the front lines trying to get food to millions of people in need. >> reporter: in this syrian warehouse, they're preparing for the assault on raqqa. there is sugar, salt, and lentils. >> at the moment we are supporting about 160,000 people already that have fled raqqa from the fighting. >> reporter: and the planning for more. when you think about the assault, you think about the military component. you have another area to concern. >> exactly. military action means hundreds of thousands of people moving. >> reporter: hundreds of workers all displaced themselves are working for the w.f.p.

they pack rations here to feed as many as 1.5 million families a month. >> it's a diet that is neglecting what the needs are of the people, like chickpeas and humus is a staple food here. >> >> reporter: so what you're distributing in syria is what you're distributing in south sudan? >> oh, yeah. >> reporter: this is about preventing hunger, of course, but it's also about preventing another crisis, migration, as those who are fed here in syria are less likely to move or cross borders in search of food. >> if you know as family you get your monthly ration every mono, you don't move. >> reporter: more than half of syria's population has been displaced, and kern says getting food to them is complicated with dozens of different armed groups fighting each other for power. >> it's probably the most complex operation in terms of access and who is controlling what. >> reporter: they're only feeding about four million of the seven million in need, but

these rations are key to keeping syrians alive and keeping them here to ultimately rebuild their country. seth doane, cbs news on the outskirts of damascus. >> ninan: we'll be right back. pa well, when you have copd, it can be hard to breathe. it can be hard to get air out, which can make it hard to get air in. so i talked to my doctor. she said... symbicort could help you breathe better, starting within 5 minutes. symbicort doesn't replace a rescue inhaler for sudden symptoms. symbicort helps provide significant improvement of your lung function. symbicort is for copd, including chronic bronchitis and emphysema. it should not be taken more than twice a day. symbicort contains formoterol. medicines like formoterol increase the risk of death from asthma problems. symbicort may increase your risk of lung infections, osteoporosis, and some eye problems. you should tell your doctor if you have a heart condition

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kids who have severe epilepsy. our chief medical correspondent dr. jon lapook has this story. >> reporter: when desmond phillips had his first epileptic seizure, he was just eight months old. >> up until then he was happy, healthy boy. did you have fun day? >> reporter: roelie and karim phillips are his parents. >> he's not able to breathe. he stopped for a moment and then it started again. >> reporter: after that the seizures never really stopped, sometimes 20 in a week. in 2011, at its worst, more than 2,700. >> it really affects quality of life. you don't really have much. >> there's really no quality of life under those circumstances. >> reporter: what's that like for you as parents? >> we didn't have a lot of hope when he was undergoing so many seizures. >> reporter: how did the seizures affect his life? >> he can't really communicate. >> age two, his seizures got so bad he actually started regressing.

he's happy, but he doesn't always get it. >> hey, you! >> reporter: one after another, anti-seizure medications failed. in 2014, doctors at nyu langone medical center put desmond on cannabidiol or cbd, one of the compounds in the marijuana plant. cbd does not induce a high. this week's study of 120 children with a rare form of epilepsy found those given cbd along with their standard medications had a nearly 40% reduction in the frequency of seizures. >> we didn't know what the placebo response was. >> reporter: dr. anthony davenport directeds the epilepsy center at nyu langone and led the trial. >> after so much time, literally 4,000 years of anecdote and belief, we now have scientific rigor. we have evidence. >> reporter: desmond is now nine and can go days without a seizure. sometimes weeks. >> our son is actually starting to emerge. >> i just had the best mother's day ever. he did the carousel, and just

having fun with the kids outside on a gorgeous day without having to worry about des having a seizure. >> he was smiling. he was laughing. he was enjoying life. >> you ready to go home? i know you're not. >> he's the best hugger. he gives you these big hugs. >> reporter: though the family says desmond has had no problems with the medication, side effects like fatigue and gastrointestinal symptoms were more likely with the drug than the placebo. the company that makes the drug plans to file for f.d.a. approval later this year. jon lapook, cbs news, new york. >> ninan: up next, a new video game aimed at preventing violence on the streets of chicago.

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eliquis may increase your bleeding risk if you take certain medicines. tell your doctor about all planned medical or dental procedures. i'm still going for my best. and for eliquis. ask your doctor about eliquis. >> ninan: we end tonight inside a video game that similarlates the mean streets of a major u.s. city. it's called "we are chicago." the aim of the game is reducing violence and keeping kids alive. here's dean reynolds. >> reporter: chicago's bloodshed has been captured on television, memorialized on the big screen -- >> mr. friend mr. beretta thinks you should shut up. >> reporter: -- and inevitably it's become the stuff of action-packed video games. the scene has the feel of authenticity to larone robinson and grady griffin. >> playing this game is personal to me.

>> reporter: you've actually been attacked. >> numerous times. >> reporter: numerous times? >> yeah. >> dude, you doing to dis the man or else. >> reporter: it's called "we are chicago." using multiple choice option, players guide the main character, a high school senior, in and out of possible conflicts, like avoiding gang members. >> hey, let's take a shortcut. >> reporter: whether the character survives is based on the decisions a player makes. >> once you get started, you look at the papers. >> reporter: 28-year-old michael block came up with the idea four years ago. >> the focus of the game is trying to educate people about what's happening and trying to inform them about what's going on in these kind of personal situations that you don't typically see, because you're making those choices. you're having to decide what this character is going to do in any situation. >> i willive two blocks south -- i live two blocks south of where we are right now. >> reporter: tony thornton who grew up in chicago's englewood neighborhood is the game's head

writer. >> i wanted to represent my neighborhood well. i didn't want to sugar coat it. >> reporter: he doesn't. [gunfire] >> was that a gunshot? i'm so tired of all these shootings. >> some are able to navigate this minefield and come out unscathed, and others become victimized by those situations and fall by the wayside. >> get the hell out of here. this isn't about you. >> reporter: would you do the same thing that you do in this game? would you like go to the other side of the street and all this kind of stuff? >> yeah, yeah, i have to. that's how we survive. >> reporter: sometimes they shoot you. >> reporter: and that's the point. using the game's virtual world to survive in the real one. dean reynolds, cbs news, chicago. >> ninan: and that's the cbs weekend news for this saturday. later on cbs, "48 hours." i'm reena ninan in new york. thank you for joining us. good night.

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