More than seven years after TWA Flight 800 slammed into the Atlantic Ocean off Long Island, the reconstructed jumbo jet has been packed up and workers began shipping it Monday to a college in Virginia, where it will be used to train air safety investigators. All 230 people aboard Flight 800 died when the plane exploded in a fireball minutes after taking off from Kennedy Airport on a flight to Paris on July 17, 1996. The National Transportation Safety Board found that Flight 800 was destroyed by a center fuel tank explosion, likely caused by a spark from a short-circuit...