Fred Thompson's campaign for president has collapsed. Well, at least, among the bookies. I've been giving readers regular updates on the betting in the presidential election, but absolutely nothing has been more dramatic this fall than Thompson's market meltdown. According to the betting at the Iowa Electronic Markets, the TV actor's chances of winning the GOP nomination have slumped in just six weeks from nearly 30% to less than 10%. As recently as June, just after the former Senator announced he was running, he was the favorite in the betting, at nearly 40%. The numbers are similar over at Dublin-based...