No oath and no transcipt lets the liars keep lying

Exactly:

Congress has the right and the duty to fully investigate the firings, which may have been illegal, and Justice Department officials’ statements to Congress, which may have been untrue. It needs to question Karl Rove, Mr. Bush’s chief political adviser, Harriet Miers, the former White House counsel, and other top officials.

It is hard to imagine what, besides evading responsibility, the White House had in mind. Why would anyone refuse to take an oath on a matter like this, unless he were not fully committed to telling the truth? And why would Congress accept that idea, especially in an investigation that has already been marked by repeated false and misleading statements from administration officials?

The White House notes that making misrepresentations to Congress is illegal, even if no oath is taken. But that seems to be where the lack of a transcript comes in. It would be hard to prove what Mr. Rove and others said if no official record existed.

Liars lie.