People (unconvincingly, to me, and probably to anyone who’s not suffering selective amnesia about the runup to the war) accuse George W. Bush of shifting justifications after 911, but how about shifting justification for 911?

…bin Laden’s justifications for 9/11 are continually moulded and shaped by Western media coverage. At first – on 28 September 2001 – he disavows responsibility for the attacks, instead trying to pin the blame on some dastardly conspiracy within America itself: ‘The United States should trace the perpetrators of these attacks within itself