First off, there is more than one kind of stem cell. Human stem cells are unique because they have the potential to become a specialized cell and can divide and renew themselves, according to the National Institutes of Health.
Doing Time as a Federal Prison: 1934-63. In 1933, the Army relinquished Alcatraz to the U.S. Justice Department, which wanted a federal prison that could house a criminal population too difficult or dangerous to be handled by other U.S. penitentiaries.
The Arizona Department of Corrections (ADC) has opened a new facility with 500 maximum-security prison beds in the Rast Unit at the Arizona State Prison Complex (ASPC Lewis) in Buckeye, Arizona. (Maximum-security prisons in the state of Arizona are what is usually thought of as supermax prisons.)