Elon Musk's potential mega-merger of Tesla and SpaceX would likely face a China-shaped hurdle from regulators on both sides of the Pacific over concerns about national security and the sharing of data and technology.
The world's richest person said on Tuesday his two companies had set up special committees to discuss a union, calling a merger a "good idea". Turning it into reality, however, would mean navigating the thorny issue of Tesla's heavy reliance on China for manufacturing versus SpaceX's defence business.
