Chinese leaders Xi Jinping, Li Keqiang, Zhang Dejiang, Yu Zhengsheng, Liu Yunshan, Wang Qishan and Zhang Gaoli attend the opening session of the 16th national congress of the All-China Federation of Trade Unions (ACFTU) at the Great Hall of the People in Beijing, capital of China, Oct. 18, 2013. (Xinhua/Yao Dawei)