Maddow vs. Buchanan

There's been a lot of talk recently in the blogosphere about Pat Buchanan running amok with seemingly no restrictions at MSNBC. Buchanan's been a regular there for several years, so it might seem surprising that the lefty blogosphere is only now, all of a sudden, fixating on Buchanan's admittedly retrograde views as a problem at MSNBC. But if you've been watching Rachel Maddow's show over the...