hearing from a source that he was in syria as recently as 2014 and somehow slipped back here into europe unnoticed is a massive concern obviously to western intel and to counterterrorism efforts. that is number one. number two, you point out transportation here in paris. so as we have now learned, this is from an investigator close to all of this telling us that they have actually been, for years here in france, monitoring islamic radicalization among airport workers. for example, you think of the major airports here in paris. they've been talking to services and to unions who, by the way, have been complaining for years that there has been this radicalization going on among employees. in fact, specifically, one of the attackers here at the bataclan concert hall just about a half mile from where i'm standing apparently was a bus driver, part of this public transit system here in paris called the ratp. he had been a bus driver until 2012. so that is a concern here in