According to today’s New York Times, Brandon Mayfield, the American convert to Islam [I’m painfully aware that nationality has nothing to do with religion, but that’s the way it’s being reported], who was detained yesterday for involvement in the Madrid train bombings of March 11, may not in fact be involved. The relevant graf is: The law enforcement officials said they were afraid that Mr. Mayfield, who is originally from Kansas, might become a fugitive if he knew he was under suspicion. So monitoring that was just getting started was abruptly halted. Mr. Mayfield was arrested before investigators had fully…