Several policemen patrol the railway line in Taiyuan, Shanxi Province, Jan. 31, 2013. Yang Yuan is the team leader of the police community supervising the Shijiangzhuang to Taiyuan passenger railway. To secure the transportation in the section between Shijiangzhuang and Taiyuan, Yang has to walk 10km everyday -- checking the protecting wire net, stopping the naughty children from running onto the tracks, picking up stones from the rails – just to complete his basic tasks. [Photo/CFP]