that is -- those are a lot of moving parts in addition to possibly looking for another suspect there. >> that is huge clock with a lot of moving parts. one of the things law enforcement would have to do is stop anyone from coming on campus other than emergency response personnel. we understand if it was a family member, we want to get to them. but with 18,000 people already on campus, police, fbi, everybody else there's got their hands full so i'm sure they would stop people from entering the campus but realize, tamron, the other side of it is that there may be a lot of students, employees trying to get in the students and get campus. law enforcement has to be able to screen those cars to make sure the shooter, that we believe they're still looking for, is not trying to escape by that route, too. so they have to be looking, searching cars, perhaps as they leave campus. this is really -- chews up with