Poor Harry Reid. He can’t seem to do much of anything right these days. Not long after he went to the trouble to introduce Frank Lautenberg’s opportunistic black powder background check bill in the Senate, we get news that the Flying Tsarnaev Brothers didn’t, in fact, get their bomb-making components from a gun store or any other reloading gear seller. Instead, Tarmerlan went to the same fireworks retailer that would-be Times Square car-bomber Faisal Shahzad used to source his explosives. That one Phantom Fireworks purchase yielded the Chechnyans about three pounds of powder, enough for one of their two pressure cooker IEDs. And there are five other fireworks stores in the same area. Of course, now that we know where the welfare-subsidized jihadis got their explosives, we’re sure Senators Lautenberg and Reid will want to kill their ill-conceived, knee-jerk attempt at yet more firearms regulation. They will, won’t they?