(Now seems like a good moment for an aside about an obvious point. I appreciate that Kaus' schtick is trying to piss off liberals while also saying he's a liberal. Nevertheless, it's a bit hard to believe that he's genuinely bothered by the (alleged) fact that Davis-Bacon gives us less new construction per taxpayer dollar than it otherwise might in light of the fact that he seems to have no interest whatsoever in the various large inefficiencies that the Bush administration's corruption and mismanagement have introduced into the contracting process. Obviously, I can't convince Kaus that bashing Davis-Bacon isn't a good way too annoy liberals and since that's what he's actually interested in accomplishing there's no real purpose in debating the merits of the issue.)
I revise my question "Why the hell does anyone publish that idiot" to "Why the hell don't the idiots who publish Kaus hire Matt Yglesias instead since heclearly has some spare time or he wouldn't blog so much."