America's first Muslim congressman has provoked outrage by apparently comparing President George W Bush to Adolf Hitler and hinting that he might have been responsible for the September 11 attacks.

Addressing a gathering of atheists in his home state of Minnesota, Keith Ellison, a Democrat, compared the 9/11 atrocities to the destruction of the Reichstag, the German parliament, in 1933. This was probably burned down by the Nazis in order to justify Hitler's later seizure of emergency powers.