Major U.S. carriers entered a second consecutive day of scheduled flight reductions, prompted by staffing shortages tied to the ongoing federal government shutdown. The Federal Aviation Administration (FAA) instructed airlines to cut 4% of flights at 40 large airports on Saturday, with the number set to rise to 6% by Tuesday and potentially 10% by mid-November. The disruption stems from absenteeism among air-traffic controllers and screeners working without pay, adding pressure on travel and supply-chain industries and feeding into broader economic risk-sentiment concerns.