The incident overshadowed Iran – United States relations for many years . The former CIA analyst Kenneth M. Pollack wrote : " The shoot-down of Iran Air flight 655 was an accident , but that is not how it was seen in Tehran . " Following the explosion of Pan Am Flight 103 five months later , the British and American governments initially blamed the PFLP-GC , a Palestinian militant group backed by Syria , with assumptions of assistance from Iran in retaliation for Flight 655
Pan Am Flight 103
Pan Am Flight 103
Iran Air Flight 655