Inside Story - Who was really behind the Lockerbie bombing

As the world marks the 25th Lockerbie attack anniversary, we ask why there is no clarity on who was the perpetrator. To discuss this, Inside Story presenter Folly Bah Thibault is joined by guests: Jim Swire, who lost his daughter in the bombing and led a high-profile campaign for justice on behalf of the UK victims' relatives; Richard Marquise, then head of FBI's task force on the Lockerbie investigation; Morag Kerr, the author of 'Adequately Explained by Stupidity? Lockerbie, Luggage and Lies'; and Anas el-Gomati, the director general of Libya's first public policy think-tank Sadeq Institute.