It’s the private prison industry, which is lobbying for draconian immigrations laws, like Arizona’s “Papers Please” law, because more people in detention means more money for them:

NPR spent the past several months analyzing hundreds of pages of campaign finance reports, lobbying documents and corporate records. What they show is a quiet, behind-the-scenes effort to help draft and pass Arizona Senate Bill 1070 by an industry that stands to benefit from it: the private prison industry.

The law could send hundreds of thousands of illegal immigrants to prison in a way never done before. And it could mean hundreds of millions of dollars in profits to private prison companies responsible for housing them.

The story leads off with a private prison pitching an immigration detention facility for women and children in Benson, Arizona.

There are certain functions that cannot be fobbed off on the private sector, and this is perhaps the most sterling example.