The late folk artist Pete Seeger was a musical and political icon who helped create the modern American folk music movement. Now there’s some new pages to add to his songbook—the government has released nearly 1,800 pages that reveal the FBI spied on him for nearly 30 years. The surveillance began when Seeger protested the targeting of Japanese Americans during World War II. It continued until the early 1970s as he wrote some of the most famous anti-war songs of the 20th century. We are joined by Pete Seeger’s biographer, David King Dunaway.