Disputed Facts Related to a Cover-up

The purported gun camera photographs are fakes.

The first set of gun camera film, published in the 1982 Israel Defense Forces History Report, is fraudulent. The second set, published in The Liberty Incident by A. Jay Cristol, is fraudulent.

Why would an innocent party need to lie?

Communications intercepts of the attackers were destroyed.

Former National Security Agency analyst Harold M. Cobbs has written a statement regarding the shredding of evidence.

Former Air Force Security Service analyst James R. Gotcher has written a statement, under perjury, that details the destruction of evidence and shows that not all communications intercepts of the attackers have been made public. Former analyst Steve Forslund has written a similar statement.

There was a pattern of "innocent mistakes" committed by Israel during the 1967 war.

The reflexive Israeli explanation for commission of unlawful deaths by its military personnel typically involves use of the term "innocent mistake." An unarmed, unresisting protester is crushed by an Israeli army bulldozer (twice); it's not a deliberate attack, it's an "innocent mistake."

During the 1967 war, Israeli forces committed a number of "innocent mistakes," including:

Strafing a column of clearly marked UN peacekeepers who were in the process of withdrawing, leaving 3 dead (note paragraphs 18, 19, 23-26, 52; see also this page, beginning paragraph 91);
Executing more than 300 Egyptian prisoners of war; and,
Killing 14 unresisting UN peacekeepers* in clearly marked vehicles when IDF tanks encountered them on a coastal road.

Of course, their explanation for their attack on USS Liberty also included the phrase "innocent mistake."

* - From James Bamford's Body of Secrets, referring to a story in the Toronto Globe and Mail:

A convoy of Indian peacekeeper soldiers, flying the blue United Nations flag from their jeeps and trucks, were on their way to Gaza when they met an Israeli tank column on the road. As the Israelis approached, the UN observers pulled aside and stopped to get out of the way. One of the tanks rotated its turret and opened fire from a few feet away. The Israeli tank then rammed its gun through the windshield of an Indian jeep and decapitated the two men inside. Then other Indians went to aid their comrades, they were mowed down by machine-gun fire. Another Israeli tank thrust its gun into a into a UN truck, lifted it, and smashed it to the ground, killing or wounding all the occupants. In Gaza, Israeli tanks blasted six rounds into UN headquarters, which was flying the UN flag. Fourteen UN members were killed in these incidents. One Indian officer called it deliberate, cold-blooded killing of unarmed UN soldiers.