BBC News
Prisoners are being abused at a "secret jail" in the main American military base in Afghanistan, according to a report from a US policy think tank.
Ex-detainees said they were deprived of sleep and held in cold isolation cells in the site at Bagram, says New York-based Open Society Foundations.
A BBC investigation in April uncovered similar allegations of prisoner abuse at a hidden facility in Bagram airbase.
Read More: http://www.bbc.co.uk/news/world-south-asia-11551409
