Bryce Lockwood, Marine staff sergeant, Russian-language expert, recipient of the Silver Star for heroism: I'm angry! I'm seething with anger! Forty years, and I'm seething with anger!" Lockwood was aboard the USS Liberty, a super-secret spy ship on station in the eastern Mediterranean, when four Israeli fighter jets flew out of the afternoon sun to strafe and bomb the virtually defenseless vessel on June 8, 1967, the fourth day of what would become known as the Six-Day War. Four decades later, many of the more than two dozen Liberty survivors located and interviewed by the Tribune cannot talk about the attack without shouting or weeping. Their anger has been stoked by the declassification of government documents and the recollections of former military personnel. In declassifying the most recent and largest batch of materials last June 8, the 40th anniversary of the attack, the NSA ... acknowledged that the attack had "become the center of considerable controversy." It was not the agency's intention, it said, "to prove or disprove any one set of conclusions, many of which can be drawn from a thorough review of this material." Air Force Capt. Richard Block was ... monitoring Middle Eastern communications [on June 8, 1967]. "Some of the pilots did not want to attack," Block said. "The pilots said, 'This is an American ship. Do you still want us to attack?'" And ground control came back and said, 'Yes, follow orders.'"