He makes reference to the DC snipers but fails to mention the cost of having those terrorists free for weeks. In Boston both men were caught in a matter of days with no more civilians hurt. I'll take Boston's solution over that of DC's. He also doesn't seem to take into account the very large number of non-fatal injuries sustained. And the potential for even more given the use of explosives. Trying to minimize the risk by discounting the injuries and only considering fatalities is pretty shallow analysis.
Also making light of the police and donuts does not improve my opinion of his stance.