Leaked files expose how China organized mass detentions

The New York Times obtained more than 400 pages of internal Chinese documents.

The documents provide an inside look into how Chinese officials detained as many as a million Muslim ethnic minorities in detention camps.

The documents included a how-to of sorts for handling questions such as, "Where is my family?"

The documents are said to be one of the most significant leaks of Chinese government papers in decades.

Read more from The New York Times.