During the Six Day War the Israelis attacked a US ship, the USS Liberty. It's widely believed that this was a case of mistaken identity, but here's the thing: the USS Liberty's job was to monitor communications from both sides. So it's possible the Israelis didn't want the Americans to know what they were up to; they were about to attack the Golan Heights after having offered a cease fire to Syria (which Syria had not yet accepted).
Just like today where they're deliberately murdering journalists to prevent the world and particularly Americans from knowing what they're up to in Gaza.
The Israelis also "accidentally" killed a bunch of UNEF personnel during that war.
