According to US newspapers, the sole surviving suspect says the west’s invasion and occupation of Iraq and Afghanistan were major motivations for doing what he did. And without any outside, foreign assistance, according to US officials quoted in the Washington Post.
This fact will be played down or more likely ignored very largely by the government in Washington.
But it is important because it is a direct admission from the suspect himself that politics and western foreign policy are the driving forces for him rather than Islam, al-Qaeda, foreign connections and all the rest of it currently being pointed at in so many quarters despite the patent lack of meaningful evidence.
See also “Bomber motivated by religion? Media regurgitates government propaganda”, Loonwatch, 24 April 2013
Update: See Glenn Greenwald, “The same motive for anti-US ‘terrorism’ is cited over and over”, Guardian, 24 April 2013