On July 3, 1988, the USS Vincennes, a Navy missile cruiser stationed in the Persian Gulf, saw on its radar an Iranian aircraft. This aircraft was a passenger airplane, flying from Tehran to Dubai with 290 civilians on board, including 66 children. But the crew of the USS Vincennes identified the airplane as a fighter jet and fired two missiles at it, killing everyone on board.
In the aftermath, the United States deflected responsibility, refused to condemn the attack, and never apologized to the Iranian people. US military officials blamed the pilot and made other attempts to shift accountability. This was during the Iran-Iraq War, for which the US was providing support to Iraq, and the Persian Gulf was full of tension and fighting.
Almost two months after the attack, the Pentagon issued a report that showed, according to Slate, that "nearly all the initial details about the shoot-down—the 'facts' that senior officials cited to put all the blame on Iran Air's pilot...