It has a dual purpose, makes us feel safer and deters potential terrorism. It does in a way make flying safer but shifts the terrorist attacks to another area of our life. Killing terrorist is what makes us safer ultimately not reasoning with them.Its not any safer nor is it a small price.
Quote: It does not deter anything. If someone wants to blow up a lot of people they could do it at the TSA line in the airport. If they just wanted to blow up a plane they would just air mail a bomb. What is deterring is that no one would stand by an let a hijacking happen after 9/11. The passengers are the deterrent not the TSA. The only way to repeat 9/11 is fill the plane with your people or rent an private plane.
TSA is a serous attack on the 4th amendment an has no real up side.