Zeinab Badawi speaks to Ismail Sezgin, director of the Centre for Hizmet Studies in the UK, an educational think tank founded by supporters of Fethullah Gulen. The Turkish government is continuing to hunt down people who it claims are followers of the reclusive US-based Turkish cleric. The government blames Gulen for the recent coup attempt and wants the US to extradite him to Turkey to stand trial. He denies involvement. Is the Gulenist movement a threat to the Turkish state? Show less