Naman Ramachandran The U.K.’s BBC Four has commissioned a feature-length documentary that will investigate what became of the Libyan dictator Colonel Muammar Gaddafi’s immense wealth in the aftermath of the Arab Spring, which ended his reign.Produced by Brook Lapping, “The Search for Gaddafi’s Billions” will air as part of the BBC’s long-running documentary banner Storyville, and will follow two Dutch journalists, Misha Wessel and Thomas Blom, as they enter the mysterious world of spies,