CarmelGreg you are so right. We probably never will stop a bomb from going through. I pray that we never have to. Your brillient statement that even if we catch a box cutter or gun they never have taken down a plane is just purely assanine. How do you think that the planes that flew into the world trade center were commandeered? Box cutters! Do you honestly, in your little fogged up vile world really believe that someone intent on taking down a plane couldn't do it with a gun? You really need to use your brain for something other than sitting on.