MLK Day musings. It's a holiday, a lot of people aren't working, so no heavy commentary today. Not to be a Pollyanna, but there's something to be said about celebrating Martin Luther King Jr.'s birthday at a moment when the top two foreign-policy aides to a Republican president are both African-Americans, and they disagree with each other over the president's policy on affirmative action. Of course, I happen to think Colin Powell is right and Condoleezza Rice is wrong.