So what if he boasts about his "arrest" in South Africa for supposedly attempting to visit Nelson Mandela, an effort Mandela allegedly later thanked Biden for attempting? Never mind that none of it is true -- not the arrest, not the attempted visit and not the thank you from Mandela. According to the Daily Beast: "Biden finally admitted that the story was much different than he'd initially described, saying he told police while on a congressional delegation to South Africa that he was 'not going to go in that door that says white only' and separate from his black colleagues."...