Overview: "Assault on Pelindaba" rebroadcasts a segment on an attack at a South African nuclear research center. "The Liquidator" rebroadcasts a segment on the men in charge of undoing some of the damage from Bernie Madoff's Ponzi scheme. "A Living for the Dead" rebroadcasts a segment on the business of marketing dead celebrities. "Andy Rooney" talks about the U.S. citizenship test.