You could say this has been a big week for MSNBC anchor Keith Olbermann, but lately they've all been big weeks. It would be difficult to find an anchor or TV personality who has been on a bigger roll. Certainly not Katie Couric, to name but one. In fact, in the last year, Olbermann has emerged as a kind of force of nature on television. His viewing audience has continued to rise -- his show is up about 76 percent in the first quarter of this year as compared with last. His profile, however, is off the charts. Olbermann has...