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Iraq's oil minister Hussain Al-Shahristani was imprisoned in Abu Ghraib prison under Saddam Hussein.
This nuclear scientist spoke to The Interview in February 2008, where he told presenter Owen Bennett-Jones how he suffered torture and a decade in solitary confinement.
He also talks about having to tackle the repeated sabotage of the country's oil pipelines and wrestling with a law to cover the oil industry which satisfied Shias, Sunnis and Kurds.