55. Taubman, Khrushchev, 531–32. An older work that raises searching questions about JFK's skill at crisis management is James A. Nathan, "The Missile Crisis: His Finest Hour Now," World Politics 27 (January 1975), 256–81. More recent accounts that draw on Soviet sources include Fursenko and Naftali, "One Hell of a Gamble" and James G. Blight and David A. Welch, On the Brink: Americans and Soviets Reexamine the Cuban Missile Crisis (New York, 1989).