So, you think those embarrassing emails sent to the computer’s trash can are truly deleted, right? Uh, no:
"If Karl Rove or other White House staffers tried to delete sensitive e-mails from their computers, experts said, investigators usually could recover all or most of them.
"The House Committee on Oversight and Government Reform is investigating whether the White House or the Republican National Committee erased ‘a large volume of e-mails’ that may be related to the firings of eight U.S. attorneys.
"Deleting a document or e-mail doesn’t remove the file from a computer’s hard drive or a backup server. The only thing that’s erased is the address – known as a ‘pointer’ – indicating where the file is stored.
"It’s like ‘removing an index card in a library,’ said Robert Guinaugh, a senior partner at CyberControls LLC, a data forensic-support company in Barrington, Ill. ‘You take the card out, but the book is still on the shelf.’"