In the past three years, thousands of alleged militants have been transferred around the world by American, Arab and Far Eastern security services, often in secret operations that by-pass extradition laws. The astonishing traffic has seen many, including British citizens, sent from the West to countries where they can be tortured to extract information. Anything learnt is passed on to the US and, in some cases, reaches British intelligence.

The Observer | International | Secret world of US jails