In 2008, during the American presidential election campaign, US Senator Hillary Clinton's handlers began to get clumsy and she was seen in two different places at once on a number of separate occasions. And not just in Iowa and New Hampshire. Someone sees Hillary Clinton at a function across town at, say, 1.30pm. And then, when they compare notes with a Democratic Party co-worker later that day, they learn that Hillary was also seen back at the hotel at 1.30pm, three miles away. And her clothes were different, or her hair was different, or her makeup was different, and...