"Hulton also recalls one particular conversation with Mary Ayers. "She was enthusiastically talking to me about this young black student that they were helping out," he tells Corsi, "and she referred to him as a foreign student." Adds Hulton, "I was taken aback by how enthusiastic she was about him." Within a year of this conversation, Hulton had a fateful meeting with the young man he presumed Mary was talking about. According to Hulton, he encountered the fellow on the sidewalk on the front of the Ayers home. In that it was extremely rare to see a black man in...