The GAO's conclusion was that it was relatively simple and amazingly cheap for terrorists to build a bomb and blow it up on a plane.
"The investigators learned about the components to make an improvised explosive device and an improvised incendiary device on the Internet and purchased the parts at local stores, said the report by the Government Accountability Office. Investigators were able to purchase the components for the two devices for under $150, and they studied the published guidelines for screening to determine how to conceal the prohibited items as they went through checkpoint security."
But rest assured your three ounces of bottled water will still get you strip searched. (AP)