I'm going to give Kerik the benefit of the doubt for now. He was one of the sensible people who stopped evacuating Grand Central Station every time some nutcase called in a bomb threat after 9/11/01. I believe that he has good judgment with respect to what is a real threat and what is not. For instance, I can imagine him changing many of the TSA's stupider practices. On the other hand, he is politically savvy, which could stop him from doing what he knows makes sense!
Bruce