When inmates arrive at the United States Penitentiary Administrative-Maximum Facility in Florence, Colorado, it immediately becomes clear: ADX, the nation’s most secure Supermax prison ...

The inmate, identified as Shane McMillan ... attempting to stab another inmate to death at the federal Supermax prison in Florence, Colorado in 2011, court records show. The inmate, identified ...

But the federal government runs only one "Supermax:" the notorious US Penitentiary Administrative Maximum Facility in Florence, Colorado ... prison in the entire country. There, every inmate ...