We speak in depth with journalist Jonathan Eig about his new book, King: A Life, the first major biography of the civil rights leader in more than 35 years, which draws on unredacted FBI files, as well as the files of the personal aide to President Lyndon Baines Johnson, to show how Johnson and others partnered in the FBI’s surveillance of King and efforts to destroy him, led by director J. Edgar Hoover. Eig also interviewed more than 200 people, including many who knew King closely, like the singer, actor and activist Harry Belafonte. The book has also drawn attention for its revelation that King was less critical of Malcolm X than previously thought.