The following is a page from a heavily redacted report by the Inspector General of the CIA. Although the redactions are immense, the report does conform that waterboarding was used on at least three detainees by the CIA.
The full report can be found here. Here is the ACLU's explanation of the document:
After CIA Director Michael Hayden publicly admitted that the CIA has, in fact, waterboarded detainees, the agency could no longer cling to its last excuses for covering up the use of the very word “waterboarding” in CIA records. As a result, yesterday we obtained several heavily redacted documents in response to an ongoing Freedom of Information Act (FOIA) lawsuit brought by the ACLU and other organizations seeking documents related to the treatment of prisoners in U.S. custody overseas.
While the documents do, in fact, reveal the word “waterboarding” or some variation, they leave pretty much everything else to the imagination. The pages that haven’t been completely withheld (many of them contain the words “Denied in Full” instead of any actual content) have the clandestine blacked-out look that’s become a sort of trademark of this administration.
Read it all here. Hat tip to Andrew Sullivan.