Admiral Isaac Kidd, said that it would take six months to conduct properly. The inquiry's terms of reference were limited to whether any shortcomings on the part of the Libertys crew had contributed to the injuries and deaths that resulted from the attack. Michael Oren (a former Israeli ambassador to the United States) contends that "the United States National Archives contain no evidence to suggest that information obtained by the Liberty augmented Washington's already detailed picture of events on the Golan front and of Israel's intentions there." Israeli government investigations According to an Israel Foreign Ministry letter to the Israeli Embassy in Washington: Two subsequent Israeli inquiry reports and a historical report concluded the attack was conducted because Liberty was confused with an Egyptian vessel and because of failures in communications between Israel and the U.S. The three Israeli reports were: Fact Finding Inquiry by Colonel Ram Ron ("Ram Ron Report"—June 1967) Preliminary Inquiry (Hearing) by Examining Judge Yeshayahu Yerushalmi ("Yerushalmi Report"—July 1967) (Adjudication of IDF negligence complaints.) Historical Report "The Liberty Incident"—IDF History Department report (1982) In the historical report, it was acknowledged that IDF naval headquarters knew at least three hours before the attack that the ship was "an electromagnetic audio-surveillance ship of the U.S. Navy" but concluded that this information had simply "gotten lost, never passed along to the ground controllers who directed the air attack nor to the crews of the three Israeli torpedo boats". The Israeli government said that three crucial errors were made: the refreshing of the status board (removing the ship's classification as American, so that the later shift did not see it identified), the erroneous identification of the ship as an Egyptian vessel, and the lack of notification from the returning aircraft informing Israeli headquarters of markings on the front of the hull (markings that would not be found on an Egyptian ship). As a common root of these problems, Israel blamed the combination of alarm and fatigue experienced by the Israeli forces at that point of the war when pilots were severely overworked. After conducting his own fact-finding inquiry and reviewing evidence, Judge Yerushalmi's decision was: "I have not discovered any deviation from the standard of reasonable conduct which would justify committal of anyone for trial." In other words, he found no negligence by any IDF member associated with the attack. Ongoing controversy and unresolved questions Some intelligence and military officials