That technology just escaped us.
http://www.nytimes.com/2007/12/06/washington/06cnd-intel.html?bl&ex=1197090000&en=3a8e1ed53c7d157e&ei=5087%0A
WASHINGTON, Dec. 6 — The Central Intelligence Agency in 2005 destroyed at least two videotapes documenting the interrogation of two Al Qaeda operatives in the agency’s custody, a step it took in the midst of Congressional and legal scrutiny about the C.I.A’s secret detention program, according to current and former government officials.....
The C.I.A. said today that the decision to destroy the tapes had been made “within the C.I.A. itself,†and they were destroyed to protect the safety of undercover officers and because they no longer had intelligence value.
HAhahahaha. Ahh. Yeah, that's it. To protect the safety of undercover officers....
from Congress.