美联社新闻一分钟 AP 中美贸易谈判未取得突破性进展（在线收听）

中美贸易谈判未取得突破性进展

This is AP News Minute.

Ten candidates clashed in Detroit on the first of two nights of Democratic presidential debates. Moderates fired away at Senators Bernie Sanders and Elizabeth Warren over medicare for all proposals.

US-Chinese trade negotiations ended early in Shanghai with no reports of a breakthrough. Big issues include the trade imbalance and US accusations that China steals or forces companies to hand over technology.

South Korea's military says North Korea conducted its second weapons test in less than a week. It says the North fired a pair of short-range ballistic missiles into the sea.

And officials in Oregon say a wildfire sent smoke over Interstate 5. Authorities were forced to limit traffic due to poor visibility.