Asia stocks slip; weakness in China outweighs NAFTA trade optimism

TOKYO (Reuters) - Asian stocks surrendered earlier gains and dipped on Thursday, with Chinese markets fixed firmly on risks from the Sino-U.S. trade war and taking little comfort from an apparent easing in business tensions in North America and Europe. The leaders of the United States and Canada expressed optimism on Wednesday that NAFTA negotiations would meet a Friday deadline for a deal, days after the U.S. and Mexico reached a bilateral agreement.But MSCI's broadest index of Asia-Pacific..