Chen Si is one of the few in China willing to tackle the growing problem of suicide head-on,patrolling the Nanjing Yangtze River bridge(the world’s top suicide spot)to comfort potential jumpers.TWOC chats with the two filmmakers who documented Chen’s efforts in Angel of Nanjing Chen Si is one of the few in China willing to tackle the growing problem of suicide head-on, patrolling the Nanjing Yangtze River bridge (the world’s top suicide spot) to comfort potential jumpers. TWOC chats with the two filmmakers who registered Chen’s efforts in Angel of Nanjing