WASHINGTON Washington is in the virtue business this week.Center stage is a riveting father-son drama. (No, not that one.)At the Federal Communications Commission, Michael Powell is trying to save America's virtue, while over at the State Department, his father, Colin, is trying to save his own virtue.They are both obsessing about something that should have been there, but suddenly wasn't.The son demanded an explanation for Janet Jackson's missing material, while the father wrestled with an explanation for Saddam Hussein's missing matériel.The son opened an inquiry into something everyone had already seen, as the father defended his speech making the case...