It was not immediately clear exactly which Defense Department records were purged and transferred, when it happened or under what authority, if any, they were sent to the CIA. No government agencies the AP contacted would discuss details of the transfer. The timing may be significant: The Freedom of Information Act generally applies to records under an agency's control when a request for them is received. The AP asked for files about the mission in more than 20 separate requests, mostly submitted in May 2011 – several were sent a day after Obama announced that the world's most wanted terrorist had been killed in a firefight. Obama has pledged to make his administration the most transparent in U.S. history.