Our guest is Tom Clavin, the popular historian whose latest book, "Dodge City: Wyatt Earp, Bat Masterson, and the Wickedest Town in the American West," is just out in paperback. As was noted of this book by the Houston Press: "Thorough, compelling, and entertaining.... Clavin sprinkles in fascinating tidbits about life and culture in the Old West.... In 'Dodge City,' Clavin vividly re-creates a time, a town, and an era that it seems incomprehensible occurred less than 150 years ago.