to syria, when they go to iraq. they're with others from other countries, like-minded members of isis. so they have their networks. they have their trusted people and come here and know where they can go to hide. and that's seems like what's happened to him right now. and hugely important to get him as fast as possible. >> and he has to have some kind of help, because how could he evade the best intelligence in the world right now. nic robertson, thank you so much, live for me in a very windy paris this evening, i should say. let's go straight to former cia operative and cnn security and intelligence analyst, bob baer, also with us, cnn contributor and a journalist himself, stephan devry. bob, let me begin with you, building on what nima said, last night brussels declared the highest threat level. people have to way away from airports, anywhere crowded. basically, this is a city on lockdown where the train, the me metro station, is not even running. and this is a city where you have the highest per capita