On Thanksgiving weekend in Washington, the script felt grimly familiar. After 9/11, Congress ordered a biometric “entry-exit” system for foreign visitors that never fully materialized but expanded fingerprinting and face scans at airports over the next two decades. In 2017, President Donald Trump’s “Muslim ban” sent protesters into airport terminals as families from a handful of Muslim-majority states were suddenly turned away. Now, after a 29-year-old Afghan asylum-seeker allegedly ambushed