President Joe Biden, left, greets China's President President Xi Jinping in Woodside, Calif., Nov, 15, 2023. The United States sees Hong Kong's new national security law as a tool to potentially silence dissent both at home and abroad, but has tread carefully so far in responding, a disappointment to those fighting for democracy and freedoms in the Chinese territory. (Doug Mills/The New York Times via AP, Pool, File)