Look at the history of hijackings in the US http://en.wikipedia.org/wiki/List_of_aircraft_hijackings http://en.wikipedia.org/wiki/List_of_aircraft_hijackings.

Look at the history of hijackings in the US http://en.wikipedia.org/wiki/List_of_aircraft_hijackings http://en.wikipedia.org/wiki/List_of_aircraft_hijackings. I was surprised to see that over time, the number of hijackings has been fairly flat through the 90s and the 00s, while there was a considerable drop from the high level of the 70s and 80s. I don't think anybody is suggesting getting rid of airport security all together, but rather that we be smart about it. The current system is too invasive and annoying without providing any more protection than the old system.