Originally posted by Parallax You're joking, right?
The people that do the killing do it for one reason, and one reason only. They like it! They use all sorts of excuses/reasons/rationalizations, but they do it because they enjoy causing pain, suffering, and death.
That is certainly possible but highly unlikely considering that in the case of 11/9, 7/7 and many other attacks the people carrying them out would not be around to reap the enjoyment of it nor have the past experience to know that is what they enjoy.
I would suggest that the growth of attempted attacks on the west is simply resentment. I guess you would resent any country which installed a ruthless dictator, bombed your house, killed your family, killed your friends, treated you with complete disgust etc.
I'm not saying what they do is right, I'm just saying it's pretty obvious why radicalisation is growing. I saw a particularly moving bit of film with an afghan kid swearing to join the war and kill American and British soldiers after they killed his (innocent) father which I think illustrates the point quite well...