One of Andrew Sullivan's favorite little tricks is to publish emails from anonymous "economists" which always sound something like this:
I used to really admire Paul Krugman but he's really gone downhill since he joined the New York Times. He just isn't as rigorous in his thinking as he used to be, and he's starting to embarass his colleagues.
He's done it again today and Brad DeLong has a few things to say about it.
