Fresh from his remark that he would build a border fence with Mexico that would electrocute people and then said it was a joke, Herman Cain made another misstep last night. Wolf Blitzer asked him if he would release all the Gitmo prisoners in exchange for one American soldier, as Israel did with releasing 1,000 Palestinian terrorists for one Israeli soldier. Cain said he would. Later, he said he misspoke. Was he joking again? How can you tell belief from joke?