Private prisons were constructed as a response to the overcrowding in federal prisons during the 1980s; many people speculate whether or not private prisons are good or bad. Critics argue that private prisons like any business are driven by profit, and prisons profit from the amount of criminals they are able to contain which gives the private prisons and their shareholders incentive to keep the prison population high and expenses low. The National Council on Crime and Delinquency estimates that over the next ten years state and federal expenditures on prisons will amount to $351 billion6. These government subsidies along with the support of private prison shareholders allow the prison industrial complex to keep their power and influence