The FT's James Fontanella-Khan travels to Saylorsburg, Pennsylvania, for a rare interview with Fethullah Gulen, the man Turkish President Recap Tayyip Erdogan accuses of masterminding the failed coup that rocked Turkey. Erdogan's clash with a 75-year-old living in remote Pennsylvania has put in jeopardy America’s ties with a key ally in its fight against Isis. Visit FT.com for more on this story. For information regarding your data privacy, visit acast.com/privacy