“Keeping a Secret” rebroadcasts a segment on whether children conceived with donated sperm should be allowed to know the identity of their biological fathers. “SUV” rebroadcasts a segment on the American obsessions with large automobiles. “Lost in Translation” rebroadcasts an interview with a FBI whistle-blower who claims that crucial information about terrorism was deliberately not translated in the weeks after 9/11. “Andy Rooney” talks about mixing food.