Big questions - and key logistical details - loom ahead of China-U.S. summit

Despite the lingering questions, China remains optimistic about the summit.

<img src='https://npr.brightspotcdn.com/dims3/default/strip/false/crop/1564x1003+0+0/resize/1564x1003!/?url=http%3A%2F%2Fnpr-brightspot.s3.amazonaws.com%2Feb%2F07%2F0ae9284c4f3797e074209bf46d28%2Fgettyimages-2275744151.jpg' alt='President Trump and Chinese President Xi Jinping tour Zhongnanhai Garden in Beijing in May.'/><p>Despite the lingering questions, China remains optimistic about the summit.</p><p>(Image credit: Evan Vucci)</p><img src='https://media.npr.org/include/images/tracking/npr-rss-pixel.png?story=nx-s1-5971293' />