Jonathan Rosenberg, professor of twentieth-century US history at Hunter College and the Graduate Center of the City University of New York, is author of Dangerous Melodies: Classical Music in America from the Great War through the Cold War ; How Far the Promised Land?: World Affairs and the American Civil Rights Movement from the First World War to Vietnam ; and co-author of Kennedy, Johnson, and the Quest for Justice: The Civil Rights Tapes. He lives in Croton-on-Hudson, New York.