London based Ngawang N. Anja Tsang’s latest documentary film, 'A Mother's Son,' examines the March, 2016 self-immolation death of 16 year old Dorjee Tsering in India . Anja-Tsang tells VOA that he made the film in order to discourage Tibetans from considering self-immolation as a form of protest and for the Tibetan national cause.