Rummy: Pennsylvania plane shot down?

Donald Rumsfeld at Camp Victory in Iraq:

And I think all of us have a sense if we imagine the kind of world we would face if the people who bombed the mess hall in Mosul, or the people who did the bombing in Spain, or the people who attacked the United States in New York, shot down the plane over Pennsylvania and attacked the Pentagon, the people who cut off peoples' heads on television to intimidate, to frighten -- indeed the word "terrorized" is just that.

Since when was the Pennsylvania plane "shot down"? Full transcript of CNN report. Tip courtesy of MichaelMoore.com.