Presidential candidate Ben Carson continues to face questions about his personal story, including now about the legitimacy of a story in his autobiography about being the most 'honest student' in a psychology course at Yale University. In his 1990 autobiography, 'Gifted Hands,' Carson wrote that while he was at Yale, he took an exam for a psychology course titled 'Perceptions 301,' only to be told by the professor days after that the exams were 'inadvertently burned.' The class gathered to take the repeat exam, but after a half hour, Carson says all of the students except him had left the room.