Not strictly chess, but hey, it's my blog...
Max Boot comments on the strategic background:
It is easy to be cynical about the motives of most politicians. But it is hard, if not impossible, to think of any self-interest that Kasparov has in doing what he is doing. He is truly a hero. I only hope he does not become a martyr.
Me, too, though I don't think that Putin is stupid enough to make him one.