"Weapons...given to Israel by the USA were used in an attempt to kill an American diplomat!"
A US diplomat with a long and distinguished career before becoming ambassador to Lebanon, John Gunther Dean https://en.wikipedia.org/wiki/John_Gunther_Deannarrowly escaped assassination by the "Front for the Liberation of Lebanon from Foreigners (FLLF)." Dean's suspicions that the group was a front for Israeli intelligence were dismissed at the time.