Back in the late 1990s when Hillary Rodham Clinton claimed the existence of a "vast, right-wing conspiracy," she was scoffed at by the Republicans, the press and anyone sore at the Clintons for whatever infraction, real or imagined, they might have committed. The country got a good laugh, and the expression has become almost as much a part of our political lexicon as "What did you know and when did you know it," "I am not a crook" and "Read my lips: No new taxes." However, while Hillary's naysayers were chortling and guffawing, those "thinkers" at the Cato Institute may...