John's guest this week is William Hazelgrove, author of 20 books. They focus on his book "Dead Air", the true story of Orson Welles' creation of the revolutionary day, October 30, 1938, when Welles panicked the United States with his dramatization of "The War of the Worlds". It was a one-hour radio show portraying the invasion of the United States by the armies of the planet Mars. Its consequences shook the nation, and radio was never the same thereafter.