I PROMISED HIM THAT I WOULDN’T OUT HIM a long time ago, but now Atrios has been unmasked as a guy named Duncan Black who, among other things, works for David Brock’s Soros-funded Media Matters operation. Nothing wrong with that, but if I were working for, say, Richard Mellon Scaife, I think somebody — like, say, Duncan Black — would be making something of it.