Why would Israel have deliberately attacked an American ship?
Israel’s motive for launching the attack has never been determined with certainty. One hypothesis is that Israel intended to sink the ship (with no survivors) and blame Egypt because this might have brought the United States into the 1967 war. Another hypothesis is that the Liberty was gathering intelligence about activities that Israel did not want revealed. Examples might include the massacre of Egyptian prisoners of war that was then occurring in the Sinai, as well as Israel’s impending invasion of Syria.