United States Penitentiary is a medium security federal prison in Leavenworth, Kansas and a level in Tom Clancy's Splinter Cell: Essentials. It is based on the real life United States Penitentiary, Leavenworth.
- Jamie Washington
- Prisoner 1
- Prisoner 2
- Mikey (†)
- Officer Miles
- Officer Baker
- Officer Roberts
- Officer Williams
- First secret code from Security Door Front is 6915.
- Second secret code from Security Door Back is 69125.
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