Police officers Gao Yang (L) and Nie Yingjie watch the monitor as they are on duty at the Changchun Railway Station during Spring Festial travel rush in northeast China's Jilin Province, Jan. 26, 2017. (Xinhua/Zhang Nan)
Police officers Gao Yang (L) and Nie Yingjie watch the monitor as they are on duty at the Changchun Railway Station during Spring Festial travel rush in northeast China's Jilin Province, Jan. 26, 2017. (Xinhua/Zhang Nan)