“Ridding Iraq of weapons of mass destruction. That was the whole idea, right? That‘s why we went. I am reluctant to let that fact disappear down the memory hole, because if — as the war ends, or at least starts to end — if, at this time, the history of the war is written as us going there to topple the regime of a bad man when that frankly isn‘t why were told that we were going there — Aren‘t we still at risk of making this horrific mistake again? And, aren‘t we letting the people who foisted the WMD idea on us, not many years ago, aren‘t we sort of letting them get away with it?”

The Rachel Maddow Show, MSNBC (27 February 2009)
NB: From Wikipedia "Memory hole" article: "The memory hole, as in the phrase "Going down the memory hole," refers to a small chute leading to a large incinerator used for censorship in George Orwell's novel, Nineteen Eighty-Four: