A scrap book of grisly memorabilia goes to auction in Dallas. It may include interesting clues about the capture, execution and burial of the Argentine-born revolutionary Ernesto "Che" Guevara. He was killed in Bolivia 40 years ago this month. Among items up for auction: a lock of his hair.
Peter Kornbluh, who heads the Cuba documentation project at the National Security Archive, is one of the few people who have actually seen the contents of the scrapbook. He speaks with Lynn Neary.