At the Risk of Seeming Foolish...

I am going to go out on a limb, here.

Reading the reports on Hasib Hussain (one of the four London bombers), it seems that the main reaction has been shock. Thought to have been a loving and caring young man, how could he have been so badly misjudged?

The cynic might argue 'Well, yeah! That's what you'd expect his family to say!'

We may never know what motivated him but, for the moment, I am willing to entertain a radical and perhaps naive scenario, if only to counter the backlash of anger which was, after all, the main objective of this carnage.

Is it possible that he didn't know what he was carrying?