After major disasters, the Federal Emergency Management Agency becomes a household word. It gave George W. Bush a black eye after Katrina. Now President Obama is deploying FEMA with less than a week until Election Day. GOP Governor Chris Christie has welcomed him to New Jersey. What is FEMA's relationship to the states? Who's really in charge? What has Mitt Romney had to say about the agency and its future? We talk with a former leader of FEMA and others about federal assistance in times of trouble and in the presidential campaign.