Internal CIA e-mails show the former agency head, Porter Goss, agreed with a top aide's 2005 decision to destroy videotapes of the harsh interrogation of a terror suspect, a controversial action that remains the focus of an FBI investigation.

The documents show that, despite Goss' apparent agreement, CIA officials almost immediately began worrying they'd done something wrong. The e-mails also indicate that President George W. Bush's White House counsel, Harriet Miers, hadn't been informed of the tapes' destruction and was "livid" to find out later.

The videos showed CIA interrogators using waterboarding, a simulated drowning technique that's widely considered torture, on terrorism suspect Abu Zubaydah. The videos showed that interrogators did not follow the waterboarding procedures authorized by the Bush administration, the documents indicate.