Russia is paying an expensive price after the devolution of its ruthless "Iron Curtain" empire.
After being forced into giving independence to most of its satellite states and leaving them in the lurch, many terrorist groups in such countries are determined to make Russians pay for all of their misery and continue to "be a thorn" in Moscow's side.
This latest bombing is just one more sign that decadence, corrupt wealth, petro-dollars, power, etc. is not the answer to the cancers left behind after so many years of heavy-arm, Russian rule.
The Russian powers that be, puppet Medvedev and their real leader, Putin, have decided, enough is enough; They'll be opening up all of the abandoned Stalags in Siberia and hanging a massive "Iron Curtain" around their sovereign borders, especially those swamped with oil and gas fields.
All ex-satellite states will be starved of Russian natural resources and nobody from such states will be allowed in:
Stalin, turning in his grave gave the following statement: "I was right then and I'm right now, maybe I should have wiped out another 43 million then we wouldn't have such problems!"
Lenin replied, "capitalist bastards!"
Marx also replied, "long live the proletariat and power to the people as long as they're Russian!"