Agents for the U.S. Transportation Security Administration on Sunday screened 3 million airline passengers in a single day for the first time ever. The record topped the June 23 mark of more than 2.99 million screened passengers. Eight of the 10 busiest days in TSA’s history have come this year, as the number of travelers tops pre-pandemic levels. TSA was created after the terror attacks on Sept. 11, 2001, and replaced a collection of private security companies that were hired by airlines. The agency operates under the Department of Homeland Security, which said that agents on Sunday checked 35 passengers every second.
