I'm undecided on this one, though I'm swaying towards the view that he shouldn't have been killed, instead just prevented from killing others. Was it right to kill him? What are the positives and negatives of his death?
Morally what was the right thing to do? was it a lesser of two evils?
How similar were/are the motivations of Al Qaeda and the US, they are both convinced that they religion is right are they not?