Current export controls are the worst of both worlds: Key technology leaks to China, while controls weaken U.S. firms’ incentive to invest.

In an exclusive interview, senior US official says a whole-of-supply-chain strategy is needed to cut dependence on China.

As Apple, Thinking Machines, and developers worldwide embrace Chinese AI models such as Kimi K3, U.S. policymakers are struggling to protect the AI lead.