Krugman: Liar or dingbat? How about both at the same time.

Due his Princeton professorship and Nobel Prize, I had always assumed that Krugman was simply a brilliant liar.  But after reading this piece in the The New Yorker, the only conclusion one might have is that he is a true blue dingbat.  He's still a prodigious liar, but a very stupid liar. 

Here we find a brilliant Krugman critique of libertarianism.  Pitiful.

UPDATE:  The New York Times graciously printed my comment to Krugman's post here.