The irony is that the majority of the terrorist attacks on planes in recent memory have been stopped by vigilant passengers on the plane itself. Since 9/11, using the plane as the weapon is no longer an option. The passengers are going to fight back, without question, a la Flight 93. Additionally, reinforcing and locking the cockpit doors post 9/11 has put a stop to physical takeover of the aircraft, along with an expanded air marshal program. Bag through an x-ray and walk through a metal detector should be more than sufficient. At the airport in Jakarta, Indonesia, that is how it works.

Of course, the problem is that we now live in a fear driven society where the bad people are literally around every corner and each time we step onto an airplane we are taking our own life into our hands.