The interrogations were in 2002. The tapes were destroyed three years later.
Rep. Jane Harman of California, then the senior Democrat on the House Intelligence Committee, was one of only four members of Congress in 2003 informed of the tapes' existence and the CIA's intention to ultimately destroy them.
"I told the CIA that destroying videotapes of interrogations was a bad idea and urged them in writing not to do it," Harman said. While key lawmakers were briefed on the CIA's intention to destroy the tapes, they were not notified two years later when the spy agency actually carried out the plan. Senate Intelligence Committee Chairman Jay Rockefeller, D-W.Va., said the committee only learned of the tapes' destruction in November 2006.
Rep. Pete Hoekstra, R-Mich., who was chairman of the House Intelligence Committee from August 2004 until the end of 2006, said through a spokesman that he doesn't remember being informed of the videotaping program.
"Congressman Hoekstra does not recall ever being told of the existence or destruction of these tapes," said Jamal D. Ware, senior adviser to the committee. "He believes that Director Hayden is being generous in his claim that the committee was informed. He believes the committee should have been fully briefed and consulted on how this was handled."
Jennifer Daskal, senior counsel with Human Rights Watch, said that destroying the tapes was illegal. "Basically this is destruction of evidence," she said, calling Hayden's explanation that the tapes were destroyed to protect CIA identities "disingenuous."
The CIA only taped the interrogation of the first two terror suspects the agency held, one of whom was Abu Zubaydah. Zubaydah, under harsh questioning, told CIA interrogators about alleged 9/11 accomplice Ramzi Binalshibh, President Bush said publicly in 2006.
Binalshibh was captured and interrogated and, with Zubaydah's information, authorities in 2003 captured Khalid Sheikh Mohammed, the purported mastermind of the 9/11 attacks.
Hayden said that a secondary reason for the taped interrogations was to have backup documentation of the information gathered.
"The agency soon determined that its documentary reporting was full and exacting, removing any need for tapes. Indeed, videotaping stopped in 2002," Hayden said.
The CIA is known to have waterboarded three prisoners since the Sept. 11 terrorist attacks, but not since 2003. Hayden banned the use of the procedure in 2006, according to knowledgeable officials.
The disclosure of the tapes' destruction came on the same day the House and Senate intelligence committees agreed to legislation prohibiting the CIA from using "enhanced interrogation techniques." The White House Thursday threatened to veto the bill.
Hayden's message to CIA employees was an attempt to get ahead of a New York Times story about the videotapes.
"What matters here is that it was done in line with the law," Hayden said. "Over the course of its life, the agency's interrogation program has been of great value to our country. It has helped disrupt terrorist operations and save lives. It was built on a solid foundation of legal review. It has been conducted with careful supervision. If the story of these tapes is told fairly, it will underscore those facts."
The CIA says the tapes were destroyed late in 2005, a year marked by increasing pressure from defense attorneys to obtain videotapes of detainee interrogations. The scandal over harsh treatment of detainees at Abu Ghraib prison in Iraq had focused public attention on interrogation techniques.
Beginning in 2003, attorneys for al-Qaida conspirator Zacarias Moussaoui began seeking videotapes of interrogations they believed might help them show their client wasn't a part of the 9/11 attacks. These requests heated up in 2005 as the defense slowly learned the identities of more detainees in U.S. custody.
In May 2005, U.S. District Judge Leonie Brinkema ordered the government to disclose whether interrogations were recorded. The government objected to that order, and the judge modified it on Nov. 3, 2005, to ask for confirmation of whether the government "has video or audio tapes of these interrogations" and then named specific ones. Eleven days later, the government denied it had video or audio tapes of those specific interrogations.
Last month, the CIA admitted to Brinkema and a circuit judge that it had failed to hand over tapes of enemy combatant witnesses. Those interrogations were not part of the CIA's detention program and were not conducted or recorded by the agency, the agency said.
"The CIA did not say to the court in its original filing that it had no terrorist tapes at all. It would be wrong to assert that," CIA spokesman George Little said.
The 9/11 Commission referenced the 2002 interrogations of Abu Zubaydah and Binalshibh multiple times throughout its report, but cited written documents and audiotapes only.
CIA spokesman Mark Mansfield said the CIA did not subvert the 9/11 commission's work by not providing the tapes.
"The agency went to great lengths to meet the requests of the 9/11 Commission. In fact, because it was thought the commission could ask about tapes at some point, they were not destroyed while the commission was active," he added.
The Associated Press contributed to this report