CNN is reporting that U.S. Attorney General Michael Mukasey is back at work at the Justice Department today after an apparent fainting spell last night. Mukasey had been giving a speech defending Bush Administration policies at a Federalist Society dinner at the Marriott Wardman Park Hotel here in D.C. when he slumped over and passed out. Doctors at GWU Hospital have since given the AG a clean bill of health. Mukasey had reportedly been…