Plane exploded over Scotland 29 years ago, left 270 dead
A London-New York Pan Am flight exploded midair over Scotland on December 21, 1988, killing 259 people on board and 11 others on the ground. The explosion was caused by a bomb hidden inside an audio cassette player. Libyan dictator Muammar Gaddafi took responsibility for the attack in 2003 but maintained he had never ordered the bombing. 