Revenge on a plane: It was in 1988 that Qaddafi took on his most notorious intervention. On December 21, Pan American Flight 103 went down after an in-air bombing over Lockerbie, Scotland, killing 270 people. Almost immediately, the United Nations imposed sanctions on Libya, even as Qaddafi denied responsibility, refusing to turn over the suspects indicted in British and U.S. courts. Above, a piece of the explosive device that brought down the plane.