Shares have tumbled in Asia and U.S. futures also fell ahead of the release of U.S. employment and inflation reports that could drive the direction of interest ratesCurrency traders pass by a screen showing the Korea Composite Stock Price Index (KOSPI), top center left, and the foreign exchange rate between U.S. dollar and South Korean won, top center, at the foreign exchange dealing room of the Hana Bank headquarters, in Seoul, South Korea, Friday, Dec. 5, 2025. (AP Photo/Ahn Young-joon)BANGKOK -- Shares t ...