NSA Secrets Declassified: Interviews with COMINT Leaders, Alwyn D. Kramer, Captain, USN (Ret.), Prescott H. Currier, Captain, USN (Ret.), John H. Tiltman, Brigadier (Ret.), William F. Friedman

Professionally converted for accurate flowing-text e-book format reproduction, three important NSA publications provide interviews with major figures in NSA history: Alwyn D. Kramer, Captain, USN (Ret.), Prescott H. Currier, Captain, USN (Ret.), John H. Tiltman, Brigadier (Ret.), and William F. Friedman.