The decision by MSNBC to yank Keith Olbermann and Chris Matthews from anchor duty during live political events did not exactly send a thrill up the leg of liberal bloggers. A number of them denounced the cable channel yesterday for making a change that had long been sought by NBC News veterans, saying MSNBC was caving into pressure from John McCain's campaign and the right wing. MSNBC President Phil Griffin denied that complaints from either Republicans or NBC journalists were a factor. He said he reached the decision after "talking to my guys, mainly Olbermann," after the Republican convention. Olbermann...