London, Nov.3 : A television documentary has been successful in unmasking an Iraqi defector who claimed that Saddam Hussein's biological warfare capabilities were central to the US government's case for the 2003 invasion.
The informer, codenamed Curveball, was Rafid Ahmed Alwan who, in 1999, turned up at a refugee centre in Germany seeking political asylum.
Alwan claimed to have been a highly regarded chemical engineer working on the production of mobile biological weapons at a plant in Djerf al-Nadaf.