..., this article came my way.
http://www.huffingtonpost.com/2012/02/14/private-prisons-buying-state-prisons_n_1272143.html
Excerpt (my emphasis):
...Corrections Corporation of America, the nation's largest operator of for-profit prisons, has sent letters recently to 48 states offering to buy up their prisons as a remedy for "challenging corrections budgets." In exchange, the company is asking for a 20-year management contract, plus an assurance that the prison would remain at least 90 percent full, according to a copy of the letter obtained by The Huffington Post .
The move reflects a significant shift in strategy for the private prison industry, which until now has expanded by building prisons of its own or managing state-controlled prisons. It also represents an unprecedented bid for more control of state prison systems.
Corrections Corporation has been a swiftly growing business, with revenues expanding more than fivefold since the mid-1990s. The company capitalized on the expansion of state prison systems in the '80s and '90s at the height of the so-called 'war on drugs,' contracting with state governments to build or manage new prisons to house an influx of drug offenders...