of external organizations, including the United States Pardon Attorney, United States Marshals Service (USMS), Federal Bureau of Investigation, and United States Parole Commission. The BOP deployed its SENTRY database in 1978. It currently assists in monitoring and tracking approximately 165,000 federal inmates. The system i

er-Appellant, v. Michael P. ALLERA, United States Probation Service; William S. Henry, United States Probation Service; Edward F. Reilly, Chairman, United States Parole Commission; John Joseph Curran, .1 r., Office of the Attorney General; Kathryn Seifert, Director, Eastern Shore Psychological Services, Respondents-Appellees.