Not only did he know, but I would bet he participated. The kind of hatred the United States faces from all over the world does not belong in our political arena anywhere. Americans need to take back their country and forget the troubles abroad except to monitor and deter any aggression against America. We have more than enough bombs to go around if we are ever attacked again! Obama should not be president for many reasons none of which are his skin color. Wake up and smell the propaganda that has been guiding civil rights since the 1960s. Obama bought into that message.