Todays show features a conversation author Jonathan M. Katz about his new book, "Gangsters of Capitalism: Smedley Butler, the Marines, and the Making and Breaking of America's Empire." This book looks at both Butler's life and military career -- including his exposing the "Businessmen's Plot" to overthrow FDR -- and his turn to antiwar and anti-imperialist politics. It also considers current views and conditions of those nations and peoples that Butler invaded. It features music by legendary singers Buffy Sainte-Marie and Phil Ochs.