The China-US relationship appears to have arrived this year at two inter-related flashpoints, on trade and technology, as President Trump’s administration enters a trade war that has destabilized world markets and has gone to war too against China’s tech giant Huawei. What’s really at the core of the trade dispute—and just how dominant is China’s lead on next-generation 5G technology? And what are the risks to China in these high-profile, headline-grabbing tests of national economic and political will?