Earlier this month, the State Department learned that debris from the Chinese weather satellite destroyed in their 2007 anti-satellite test would be coming uncomfortably close to another — functioning — Chinese satellite. So, like any good neighbor, State told China about the possibility of a collision. In technical terms, the US shared conjunction analysis with our PRC brethren. But, as often happens with the fabulously opaque Chinese government, the US isn’t sure if China heard us or believed us. At a conference on space debris last week in Germany, a U.S. military officer spoke with someone presumed to be a...