A "blogstorm" is thundering across liberal Web sites. Many liberals are furious at the White House press corps for virtually ignoring Stephen Colbert's keynote speech at the press corp's own White House Correspondents' Dinner last Saturday. To non-liberals, this may seem like an isolated complaint. To liberals, it further justifies their belief that the media, particularly TV news, is a big stinking cabal of conservatives. The truth is many in the media wrote about Bush's stand-up routine at the dinner as if they had just watched the coming of a comic genius, but they didn't report much on Colbert's funnier,...