At 10:01 am on December 13, air-raid sirens began to blare throughout Nanjing as local residents observed a solemn moment of silence in remembrance of the 300,000 victims brutally killed by Japanese troops 88 years ago in the Nanjing Massacre. #NeverForget #Peace (GT reporters: Niu Yingbo, Cui Meng, Liu Xin, ...