attacks in 2001. that was a true scare. the first of its kind. i think about the sniper in washington, d.c. in the fall of 2002. >> or the unibomber. >> bill: you had people being shot and killed. no one has been injured or killed thankfully. and if you are questioning whether or not the panic has ensued, i feel as the more we see this, the more people are saying well, what's next and what's this all about? and you wonder if the person is responsible or persons just know the system so well that they can evade capture in four days. it's an amazing thing. we've never quite seen it before. is this person really cagey or just really good? >> or really amateurish. one of the possibilities other