Tweet by Donald Rumsfeld saying he'd canceled his subscription to the New York Times after reading Paul Krugman's op-ed on 9/11.

From Countdown's Worst Persons:

OLBERMANN: Rumsfeld was bothered by that for some reason? Rumsfeld? Who with Cheney and Bush and all the others took the unanimity of that left and right gave them and exploited it in order to start a phony war in Iraq. Who ruined this nation's standing internationally with torture designed to get false information. Who spied on Americans without any law saying they could. Who fostered Islamophobia. Who spread panic and manipulated counter terror efforts to advance their own political power. That Rumsfeld?

Why did he cancel his subscription? Because Krugman didn't give him enough credit for all that? I've said it before and I'll say it again. Remembering that terrorism is as much about compelling irrational fear as it is about actual violence, between 2002 and 2009, the leading terrorists groups in this country were the Republican party and the presidential administration of George W. Bush.

Donald Rumsfeld, shut up! Today's Worst Person in the World.

Runners up were Rep. Peter King -- At UK terror inquiry, Rep. King defends IRA terror.

And Sen. Jeff Sessions -- Senate GOP largely quiet as Dems score points over disaster funding bill.