As well as the commissary, which is often operated by a private company. http://www.nytimes.com/2013/08/25/magazine/what-a-tv-show-can-teach-us-about-capitalis

As well as the commissary, which is often operated by a private company. http://www.nytimes.com/2013/08/25/magazine/what-a-tv-show-can-teach-us-about-capitalism.html?pagewanted=2&_r=0&hpw http://www.nytimes.com/2013/08/25/magazine/what-a-tv-show-ca...