US Commerce Department official Alan Estevez says export rules have “definitely impeded” China's AI chips, and defends the recent three-tier chip access rules

X rolls out a dedicated video tab in the US, letting users scroll through short videos, accessible via the app's bottom bar — Social network X is trying to capitalize on the removal of ByteDance apps like TikTok and Lemon8 from U.S. app stores by launching a dedicated vertical video feed.