Rony Abovitz didn't intend to be a media star, a darling of the right, a villain to the left. He just wanted to take in one of the more interesting sessions at the World Economic Forum's annual meeting in Davos, Switzerland, a panel called "Will Democracy Survive the Media?" He was drawn by the prestigious lineup of speakers: CNN Chief News Executive Eason Jordan; David R. Gergen, adviser to four presidents; U.S. Rep. Barney Frank (D-Mass.); Richard Sambrook, director of the BBC World Service; and Dr. Abdullah Abdullah, Afghanistan's minister of foreign affairs. But as Abovitz listened at the January...