it's relatively obvious that the united states orchestrated the recent bombing in moscow. when the united states pulled out of afghanistan, i pondered whether the intent was to use afghanistan as a front to destabilize the russians (and chinese) and that seems to have been the correct analysis in the end. these are operations that the cia wants to keep a distance from, and an afghan terror group is the perfect cover for it. this is unlikely to be the last isis attack on russia, and i'd expect some inside china in the near future.
basically, the united states is trying to draw russia back into afghanistan, which actually indicates somewhat of an intelligence failure because putin isn't the godless communist his predecessors were but actually somewhat of a conservative that actually agrees with the harsh brutality of religious fundamentalism. he doesn't want to pick a fight with the muslims at all. hence putin's attempt to blame it on ukrainians.
the russians need to figure out how to counterattack. they're starting to look like chumps.