Uighurs and other minorities held inside are scored on how well they speak the dominant Mandarin language and follow strict rules on everything down to bathing and using the toilet, scores that determine if they can leave.

"Manner education" is mandatory, but "vocational skills improvement" is offered only after a year in the camps.

Voluntary job training is the reason the Chinese government has given for detaining more than a million ethnic minorities, most of them Muslims. But a classified blueprint leaked to a consortium of news organizations shows the camps are instead precisely what former detainees have described: Forced ideological and behavioral re-education centers run in secret.

The classified documents lay out the Chinese government's deliberate strategy to lock up ethnic minorities even before they commit a crime, to rewire their thoughts and the language they speak.