At the end of April, Elon Musk at the last moment cancelled a trip to India, instead showed up in Beijing, and snagged a deal to rescue Tesla. The results were immediate: The shares of the electric-vehicle maker, which had been out-of-favor on Wall Street, soared on the news.
Now Washington has to be worried that China will control Musk’s other company, SpaceX, which is critical to America’s ambitions in space.
