>> theresa may knows the most about terrorism and she has seen and the brits have seen where isis has learned where our productive quarters are. saw this at the attack in turkey at the airport. isis followers understand it's hard to get bombs past screeners but if you go before the screening area where you have large concentrations of people you can have this catastrophic effects. >> i want to turn back to tel aviv. kelly o'donnell is there. kelly, the president just getting ready to leave. there he is at the airport heading to rome. he's already made comments about the attack in manchester. >> this is one of those moments, stephanie, when outside events can cast a very large shadow on a trip of this magnitude for president trump. and especially when you're talking about trying to bring about peace in a region that has seen so much conflict. the events in man chest, the