While on its way from Athens to Rome in 1985, Trans World Airlines Flight 847 was hijacked by members of the Amal Movement terrorist group. The aircraft’s 153 passengers and crew endured a three-day intercontinental ordeal during which one passenger, a US Navy diver, was murdered. Though most of the passengers were released during this time, dozens were held hostage for more than two weeks. Flight attendant Uli Derickson is widely credited with saving the lives of many passengers by doing what? Discuss