Armed police officers react in a drill in Beijing, Sept. 20, 2016. The drill aims to enhance responses in emergencies, such as attacks and prison riots. (Photo: China News Service/Liu Xiaobin)
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Armed police officers react in a drill in Beijing, Sept. 20, 2016. The drill aims to enhance responses in emergencies, such as attacks and prison riots. (Photo: China News Service/Liu Xiaobin)
