Travelers wear face coverings in the line for the south north security checkpoint in the main terminal of Denver International Airport Tuesday, Aug. 24, 2021, in Denver. Two months after the Sept. 11, 2001 attacks, President George W. Bush signed legislation creating the Transportation Security Administration, a force of federal airport screeners that replaced the private companies that airlines were hiring to handle security. (AP Photo/David Zalubowski)
Featured Photo Galleries
