A television drama produced by Beijing’s top counter-espionage agency has put the spotlight on real-life cases in the high-stakes intelligence battle between mainland China and Taiwan. Over the past decade, mainland Chinese spy dramas have rarely touched on contemporary espionage across the Taiwan Strait but on Sunday state broadcaster CCTV began airing a 40-episode television series about such intelligence efforts from 1998 to 2018. Overseen by the Ministry of State Security, The Long Watch...