The bomb detector that 56-year-old British millionaire James McCormick peddled sounded too good to be true. It could sense C-4 at a range of 600 yards. And it could be programmed to root out other contraband, too. The pistol-sized device’s simple metal antenna would magically point to where explosives, ivory, even $100 bills were hidden. Authorities in countries like Georgia, Romania, Niger, Thailand, Saudi Arabia, and Iraq, where McCormick was able to sell the detector, could, with a flick of the wrist, stop smuggling, organized crime, and deadly terrorist attacks.