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Lawmakers and witnesses press on TikTok, AI chips and undersea cables as vectors for hybrid warfare

Subcommittee on Europe · December 17, 2025
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Summary

Members focused questioning on tech vulnerabilities — TikTok as a CCP influence vector, export approvals for advanced AI chips, and deliberate targeting of undersea cables — and witnesses recommended scrutiny of divestiture deals, export controls, and tracking of suspicious maritime activity.

During questioning, committee members pressed witnesses on technological and infrastructure vulnerabilities that can be exploited by state and proxy actors.

Craig Singleton warned that TikTok "is a key platform for the Chinese Communist Party to influence views in The United States" and noted unresolved questions about a pending divestiture under an executive order. Members asked whether…

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