An accident that lasted almost an hour. I wonder how incompetent the Israelis would have to be to cause an "accident" like that? They must be extremely poorly trained, not a professional force at all. They would have to be very very stupid for that to be an accident.
The incident, which happened at 2 pm didn't last very long but there had been several Israeli reconnaissance flights over the U.S.S. Liberty since 5 am that morning. Without doubt they had identified it as a U.S. Navy "spy ship". A good history channel documentary available
here describes the events of that day and plays tapes of conversations between the Israeli pilots and their control. These tapes confirm the ship was identified as American before the attack began. And of course the flag and the large I.D. painted on the ship were unmistakable. When the jets had ran out of ammunition and they sent in the torpedo boats to finish off the Liberty, the Star of David painted on the gunboat's hulls were clearly visible to the Liberty's crew. The torpedo that struck killed 25 of the 34 sailors that died that day.
The Association of Liberty Veterans has demanded answers ever since the tragedy and has accused the Israeli's of war crimes for strafing it's lifeboats that had been deployed and for jamming it's distress calls (which is a violation of international law) as well as its tactical radio. They were also pretty angry that the Israelis tried out one of the new weapons supplied by the U.S. on them - Napalm. The cover up and the political blackmail of President Johnson is revealed in the video by Admiral Inman. The Israelis threatened L.B.J. with accusations of "Blood Libel" and anti-semitism if he pursued a proper investigation.
The motive for the attack that Jeremiah says didn't exist was pretty clear to everyone "in the know". The Israel's had promised the U.S. their war was purely defensive and not a "land grab". They were afraid that the intelligence ship would gather evidence that they intended to occupy the Golan Heights, Jerusalem, and the other territories they ended up with. They also probably feared that the spy ship would gather more evidence that they had started the war.
The Captain of the Liberty (whose Medal of Honor ceremony took place more or less in secret, contrary to the traditional presentation by the President) gave the finger to the Israeli helicopter that showed up eventually to enquire if they needed assistance. Of course this was after the Israeli's had heard the signal one of the radiomen had gotten out after he jury rigged an antenna and managed to communicate with the Sixth Fleet, which was 600 miles away. On hearing that the fleet was sending fighter aircraft the attack was called off.