From the article: "Both Krugman and his colleague Frank Rich wrote columns last month essentially blaming President Barack Obama's critics for the murders of abortion doctor George Tiller and the U.S. Holocaust Memorial Museum security guard." Mr. Limbaugh is lying as usual. Mr. Limbaugh should be ashamed of himself but, like most right-wingers, he "thinks" that lying about those he disagrees with is the morally superior choice.