LET’S BE CRASS and assess the politics of the capture of Saddam Hussein. No one is boosted more than President Bush, the beneficiary of so much good news this fall (surging economy, 10,000 Dow, Medicare drug benefit). For him, only one more thing has to fall into place to assure re-election. That’s a sharp turn for the better in the twilight war against the Baathist diehards and their motley allies in the Sunni triangle of Iraq. The grabbing of Saddam, a pathetic, cowardly Saddam, could lead to exactly that–but not necessarily. A turning point was declared when Saddam’s sons were killed last July, only to be followed by an increase in the terrorist attacks on American troops and Iraqis.