The intelligence agencies in the United States are the best in the world.
Mossad would disagree with you. Ever wondered why no one hijacks El Al flights?
I always thought it was due to two factors:
1) Proper security design at the airports that make all the obvious single-person low-tech attacks fairly unlikely to work, forcing the use of high-tech or conspiracy solutions.
2) The reluctance of anybody to be the on-the-ground part of a conspiracy or the seller of a high-tech solution, when you *know* that your continued life expectancy is very short unless you plan to spend the rest of your life hiding under a bush in one of the more inhospitable jungles of New Guinea.
Not to mention the fact that ElAl has multiple armed air marshalls on *every* flight.
Right, and they are not afraid to use deadly force immediately. Alex