it seems like today, it's quick-acting and you heard michael balboni talk about the amazing police force that we have in new york city and that sharing of information all over the country. >> gillian: already was right to point out that as horrible as this is that this perpetrator got this far today, we are also incredibly lucky because something like this, transit system like the mta handling a million people just in new york city has potential to be far more deadly. in the aftermath of this right now, the most important thing law enforcement is doing is gathering information. was he connected to anybody else? was a connected to any cells, where those cells domestic or international, quick point that just last week in response to president trump's jerusalem declaration, the state department issued the warning for americans which tells us wherever you are in the world the united states or abroad him a you are more vulnerable today than you were yesterday and i think that to a certain degree, this is going to last well past the holiday season. >> lisa: we are learning more about this guy,