NEW YORK (AP) — Air travelers across the United States are bracing for worsening delays and cancellations this week unless lawmakers can come to an agreement to end the ongoing federal government shutdown. On Saturday, U.S. airlines were forced to cut over 1,500 flights, and more than 2,900 were scrapped on Sunday after the Federal Aviation Administration instructed carriers to reduce traffic due to staffing shortages. The shortage is mainly a result of unpaid air traffic controllers calling