to defend doublem here, but at no point did he defend the actions of this guy. He has simply been pointing out exactly what the guy was saying into the camera after he did the awful thing that he did - that his despicable act was in retribution for what "western powers" have been doing in predominantly islamic countries for decades now. That isn't making excuses for the guy - that is repeating exactly what he himself said. And it is fruitful and important to recognize it as such, unless we enjoy seeing such events on our streets.
This is no more complex than the Hatfields and McCoys - you kill one of ours, I'm going to kill one of yours. It's really not all that hard to comprehend.
Western interventionism in the affairs of middle eastern countries goes back to the bloody crusades, for pity's sake. It defies logic and reason to suggest that radical islamic expansionism is the lone aggressive force in the world, or that it is even the most virulent form of it. One must be utterly ignorant of history to believe so. The record of modern U.S. interventionism in that region dates all the way back to the 1950's, which I suspect comes as a complete surprise to many. Again, it flies in the face of the historical record to suggest that modern "islamic" terrorism against the U.S. just sprang from the earth in the 1990's and 2000's without provocation.
As to whether or not Islam itself is a "backward" religion with barbaric rituals and customs... speaking as a Christian, I have to recognize that my religious predecessors went through a similar period of internal strife. That is not to excuse customs such as 'stoning', but to recognize that... well, it's none of my business - the fact remains that "Islamic barbarism" only impacts my
life, even on the periphery, when the government which purports to represent me goes and sticks it's nose in their business, as a rule.
Additionally, the presumption that terrorism represents a general threat to the population at large is a function of state-directed propaganda, and has been uniquely responsible for the erosion of liberties from mere seconds after the towers fell until this very day, and as long as people continue to believe that there is such a thing as a safe, free existence, and/or that the state can provide it, it will continue until even the illusion of freedom you believe you have now evaporates.
Furthermore, and finally, it took the London police some 20 minutes to respond to this attack? Imagine if one of those bystanders had been armed.