Last night, Rachel Maddow did something I never thought I'd see a journalist do: In the name of transparency, she went back and clarified that a bailout-justifying guest of hers actually had a blatant conflict of interest. Watch the clip here.On Monday, Maddow had on Berkeley professor Laura Tyson to talk about the bailout. You can watch that clip here. As you'll see, Tyson defended the firms that have received bailout...