NEW YORK TIMES BESTSELLER • A leading political scientist examines the dramatic rise in violent extremism around the globe and sounds the alarm on the increasing likelihood of a second civil war in the United States“Required reading for anyone invested in preserving our 246-year experiment in self-government.”—The New York Times Book Review (Editors’ Choice)WINNER OF THE GLOBAL POLICY INSTITUTE AWARD • THE SUNDAY TIMES BOOK OF THE YEAR • ONE OF THE BEST BOOKS OF THE YEAR: Financial Times, The Ti...