thank you very much -- michael balboni. maureen, we are awaiting an update from the fbi who's leading the investigation if here. >> well, interestingly, i tend to look at these things from a left of boom per spect and i, meaning what led up to this. and we know the work that the fbi's doing behind the scenes, that they've done on a number of these other terrible events, and it's very important. but this person had to pull up in a vehicle, pull out a long gun, walk up to a building, scale that building, climb up over the roof. these aren't things that happen, you know, spontaneously. he had to be there before, he was probably there when they were doing their site survey. he was watching where they were looking and where they were setting up, etc. but additionally, when you talk about the perimeter whether it be the close perimeter or the further perimeter, i know from my if experience being stuck on principle ifer the in the back of buildings or anything while warrants are being served, they always warn us of complacency. an