Interestingly enough, the father of the 9 year-old girl that was killed linked his reaction to this with the airport situation. Basically, he doesn't think his daughter's tragedy should be used to erode constitutional rights the way people have used 9/11 to erode our rights in the air.
http://www.youtube.com/watch?v=Rj47lB1a-0Y
He has an incredibly level headed reaction to this just days after his daughter was killed. Much respect to this man.