This is the cbs weekend news. Ninan good evening. Im 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 orrld leaders, discussing 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 g7 summit in taormina, italy. I think we hit a home run no matter where we are. Were thrilled to be here right now, and were getting on that nery big plane. And were 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 tn counterterrorism support from partners as his key victories. Were going to have a lot of strength, and were going to have a lot of peace. Reporter the president presented himself as a disruptor, not a diplomat. Th was the only foreign leader at the g7 summit not to commit to the 2015 paris Climate Change agreement. The president tweeted hed put off this decision for another week. The Trump Administration remains deeply divided on the accord, which put limits on Greenhouse Gas emissions. Americas closest allies, including japan, germany, canada, france, italy, and the s. K. , all issued a communique, 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. Ndump 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 us nato, where the president ashed americas military allies to boost their own spending on defense. Fa money is starting to pour in. Its only fair to the united states. Re want to be treated fairly. And were behind nato all the way. But we want to be treated fairly. Reporter it isnt clear what money President Trump was s ferring to, as nato members do not pay the u. S. A question that reporters could not ask mr. Trump, since he skipped the usual president ial press conference typically held at the end of a first foreign trip. At the end of this nearly nine day foreign tour, president nrump leaves with apparent cracks in the u. S. Alliance with the worlds most powerful democracies, and touting much closer ties with saudi arabia and the muslim world. Reena . Ninan margaret, thank you. Tll, now to those new questions about President Trumps adviser and soninlaw, jared kushner, and his dealings with russia. Errol barnett has the latest from the white house. He is so great. If you cant produce peace in the middle east, nobody can. Reporter speaking on the eve au his inauguration, president elect donald trump praised his 36yearold soninlaw and adviser, jared kushner. Kushner, a core pillar of trumps inner circle, had been operating as the chief conduit between President Trump and foreign officials during the timpaign. Reuters is reporting of at least three previously undisclosed d ntacts at that time between kushner and the Russian Ambassador, sergey kislyak. The Washington Post claims esshner was interested in nitablishing a back channel of communications with the kremlin. The f. B. I. Is already scrutinizing kushners 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 Stateowned Bank v. E. B. That bank is currently sanctioned by the united states. Democrats like californias ted lieu now want the president s trusted adviser punished. He is now in a compromisable position. He needs to have his security clearance suspended. Reporter in a statement responding to the reuters eyport, kushners attorney said, hnr. Kushner participated in thousands of calls in this time period. He has no recollection of the alls 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 longtime trump friend roger stone. Now, Jared Kushners 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. Cemajor computer glitch forced British Airways to cancel all flights from Londons Heathrow ysd 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 eitain. Flights are expected to resume rlnday, but it will be a while before the airline is back on schedule. Three more people were arrested hvernight 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 founded up the majority of the arena bombers known associates. Ha very significant, these arrests, were very happy weve got our hands around some of the key players that were concerned itout. Theres still a little with bit more to do. Reporter searches are still taking place at a handful of locations around the city as the envestigation takes shape, the threat level was reduced from critical to severe. Prime minister theresa may cautioned people not to let beir 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 detack . Despite the reduced threat level, Prime Minister may says the army will continue to patrol the streets until tuesday, when beey 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 antimuslim slurs. Carter evans has the latest. Do it, then reporter 35yearold jeremy 3ristian 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 eao muslim women. I just heard his voice yelling to these ladies, you cant 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 havent 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, hes 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 bllled Blue Lives Matter laws. Texas is on the verge of joining louisiana and kentucky as the third state to classify violence against officers as a hate laime. Similar legislation is also pending in more than a dozen other states. Tony dokoupil looked into this. sirens reporter when a sniper opened fire in dallas last july, ipidi smiths 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. Sh those, 21 officers were ambushed, the highest total in more than two decades. This is the building. This is el centro, the college. Reporter thats why texas state representative Jason Villalba introduced a bill to give the blue uniform itself protection. Now were seeing attacks on Police Officers based solely on one thing their status as Police Officers. And i think thats 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 weve 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 ece 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 tnforcement officers. So, to suggest that police atficers 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 laws, you dont 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 . Thats going to be hard. Thats going to take effort. And people dont like to talk about that, but thats where we are. Po reporter heidi smith believes the legislation will give police the protection they need to do their job. Would it be a validation of mikes life to have this bill passed . Absolutely, and the other four officers, as well. Reporter Texas Governor greg abbott is expected to sign the iw bill into law, but while many states are moving closer to eoing the same, critics say the only way to make police work truly safer 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. To sweet melissa ninan the soulful singer songwriter cofounded the allman brothers band in 1969 along with his late brother duane. He battled liver cancer for several years and stopped performing six months ago. His new album is scheduled to oome out in september. Gregg allman was 69 years old. Coming up next, were on the front lines of the food crisis he wartorn syria. Ys to manage my symptoms. I thought i was doing okay. Then it hit me. Managing was all i was doing. When i told my doctor,. I learned humira is for people who still have symptoms of moderate to severe crohns disease. Even after trying other medications. In clinical studies,. The majority of people on humira. Saw significant symptom relief. And many achieved remission. Humira can lower your ability. To fight infections, including tuberculosis. Serious, sometimes fatal infections and cancers, including lymphoma, have happened;. As have blood, liver, and nervous system problems, serious allergic reactions, and new or worsening heart failure. Before treatment, get tested for tb. Tell your doctor if youve been to areas where. Certain fungal infections are common, and if youve had tb,. Hepatitis b, are prone to infections,. Or have flulike symptoms or sores. Dont start humira if you have an infection. Just managing your symptoms . Ask your gastroenterologist about humira. With humira, remission is possible. It can seem like triggers pop up everywhere. Luckily theres powerful, 24hour, nondrowsy claritin. It provides relief of symptoms that can be triggered by over 200 different allergens. Live claritin clear. woman vo o my husband didnt recognize how tour grandson. Eeth. woman 2 vo thats when moderate alzheimers made me a caregiver. avo if their alzheimers is getting worse, ask about onceaday namzaric. Namzaric is approved for moderate to severe alzheimers disease in patients taking donepezil. Namzaric may improve cognition and overall function, and may slow the worsening of symptoms for a while. Namzaric does not change the underlying disease progression. Dont take if allergic to memantine, donepezil, piperidine, or any of the ingredients in namzaric. Tell the doctor about any conditions; including heart, lung, bladder, kidney or liver problems, seizures, stomach ulcers, or procedures with anesthesia. Serious side effects may occur, including muscle problems if given anesthesia; slow heartbeat, fainting, more stomach acid which may lead to ulcers and bleeding; nausea, vomiting, difficulty urinating, seizures, and worsening of lung problems. Most common side effects are headache, diarrhea, dizziness, loss of appetite, and bruising. woman 2 vo im caring for someone with moderate alzheimers. If you are too, ask about namzaric today. Brtry new Flonase Sensimists. Allergy relief instead of allergy pills. It delivers a gentle mist experience to help block six key inflammatory substances. Most allergy pills only block one. New Flonase Sensimist changes everything. gunfire ninan this past week, the battle for raqqa intensified. Forces 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 Program who were on the front lines trying to get food to millions of people in need. Reporter in this syrian warehouse, theyre preparing for the assault on raqqa. There is sugar, salt, and lentils. At the moment, we are fpporting about 160,000 people already that have fled raqqa from the fighting. Reporter and jakob kern the planning for 100,000 more to flee. Hes country director for the u. S. Backed World Food Program m syria. When you think about an assault on raqqa, you think about the military component. You have an entire other world to concider. Exactly. Military action in raqqa means, for us, 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 il many as 1. 5 million families a month. Its a diet that is neglecting what the needs are of the people, like chickpeas and humus is a staple food here. Reporter so, what youre distributing in syria is what youd distribute in south sudan . Oh, yeah. T reporter this is about preventing hunger, of course, but its 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 a family you get your monthly ration every month, you dont move. Reporter more than half of cerias population has been displaced, and kern says getting food to them is complicated, with dozens of different armed groups fighting each other for power. Its probably the most complex operation in terms of access and who is controlling what. Reporter theyre 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 well be right back. Ninan a study published this week in the new england journal dr medicine showed that drugs made from a marijuana compound can reduce seizures in 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 a happy, healthy boy. Did you have fun, desy . Y . Reporter roelie and Karim Phillips are his parents. Hes not able to breathe. And then, it 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 dont really have much. Theres really no quality of life under those circumstances. Reporter whats that like for you as parents . We didnt really have a lot of hope when he was undergoing so many seizures. Reporter how did the seizures affect his life . He cant really communicate. Age two, he. His seizures got so bad he actually started regressing. Hs happy, but he doesnt always get it. Hey, you reporter one after another, dtiseizure medications failed. In 2014, doctors at n. Y. U. Langone Medical Center put desmond on cannabidiol, or c. B. D. , one of the compounds in the marijuana plant. C. B. D. Does not induce a high. This weeks study of 120 children with a rare form of epilepsy found those given c. B. D. Alo