Robert Fisk: Into the terrifying world of Pakistan's 'disappeared'

If you read reports of people who got released from Guantanamo there were many many innocents who were handed over by Pakistani intelligence agency, how did they end up in Gitmo? Why are they not catching more people, I don’t know whether US is still actively looking for such ‘foot-soldiers’ of if US has realized that the plan was exploited and unwanted people were thrown in. May be some foot soldiers were thrown in the mix to make them think that all the people caught are deemed foot-soldiers.