I think the influence of the private prison operator while real is overstated. It makes a good story but they have less that 4% of US prisoners.
Much more influential are the prison guard and police unions and organizations. In California alone they oversee more prisoners than all the private prison operators combined and they are very active in strengthening sentencing[1].
But as stated by others the main problem is the politics. There are real problems and politicians can score points with naive voters by "doing something". On the other hand reducing sentences is a very risk position for politician to take.
Blame the politicians and voters as it is their responsibility to set the rules of the game. All the other parties are simply acting in their self-interest.
This report argues that private prisoner percentages are much higher if you include all forms of state detention[1], eg "more than half of Louisiana’s 40,000 inmates are housed in prisons run by sheriffs or private companies as part of a broader financial incentive scheme."
I don't think it's as easy as blaming the voters. The political system seems caught in a negative feedback loop, greased by lobbyist money and with no clear offramp.
Much more influential are the prison guard and police unions and organizations. In California alone they oversee more prisoners than all the private prison operators combined and they are very active in strengthening sentencing[1].
But as stated by others the main problem is the politics. There are real problems and politicians can score points with naive voters by "doing something". On the other hand reducing sentences is a very risk position for politician to take.
Blame the politicians and voters as it is their responsibility to set the rules of the game. All the other parties are simply acting in their self-interest.
[1] http://www.policymic.com/articles/41531/union-of-the-snake-h...