best intelligence divisions, ray kelly, the commissioner of new york. what do you have to tell us in the aftermath of this? is there a heightened sense of danger? are you seeing threats proliferate? >> no, we haven't seen an increase in threats, but our operating assumption is that we're always at risk. we're a city that obviously had two horrific attacks here in 1993 and 2001. we have had 16 plots against the city since then. so we are on alert all the time. >> i notice that the most of the plots that you talked about, the 16 that you thwarted, what happened here in boston was an event. is that a difference that is me meaningful? >> well, all terrorism is theater. this event was a major event