I don’t care so much about the actual argument they are having (over Krugman, no less), but I thought this was funny from Clive Crook (HT2 Scott Sumner):
Brad DeLong has commented on my beef with Paul Krugman. I’m reluctant to engage, to be honest, because his post exemplifies the intemperance I’m addressing. Once an admirer, I gave up on his commentary a long time ago. You get a sense of the problem from his post about me. He illustrates it with a picture of a clown. He also wants me fired. “Bloomberg has some house-cleaning to do,” he says — charming, and from a tenured academic, to boot.
DeLong’s fine under the supervision of a competent adult, as here (an excellent paper, which I praised at the time). But as an unattended blogger he regresses to intellectual adolescence, light on thinking and exhaustingly heavy on peevish belligerence. Not just uncivil, he actually disapproves of civility — today, as you see, I’m trying to meet him halfway.