U.S. President Barack Obama's National Security Advisor Susan Rice speaks on the U.S.-China ties at the George Washington University in Washington, D.C., the United States, Sept. 21, 2015. "We reject reductive reasoning and lazy rhetoric that says conflict between the U.S. and China is inevitable, even as we've been tough with China where we disagree," Susan Rice said here in a speech on Monday. (Xinhua/Yin Bogu)