Phil Messina stood in the aisle of a makeshift airplane cabin set up in a hotel conference room and pulled items from a cardboard box. "I can kill you with a magazine, a soda can, a compact disk, a wine bottle, and a fork," he told an audience of airline pilots. Then Messina, a stocky former cop with a Fu Manchu mustache, began thrusting a 6-in. gold object into the air. "But this is the best!" he boasted. "I bought it yesterday at John F. Kennedy Airport." In his hand was a dagger-sized Statue of Liberty with a knife-sharp torch...