For almost four decades, Kevin Charles Luke lived a life of service and sacrifice to the United States. A retired Army combat veteran who worked as a high-level civilian contractor at Central Command at MacDill Air Force Base, Luke was long entrusted with some of the nation’s most sensitive secrets. But it was an ill-conceived effort to impress a woman that precipitated the former colonel’s remarkable downfall. On Tuesday, a federal judge sentenced Luke to two years in prison for sharing