The United States Air Force Honor Guard stand in formation holding American flags folded at the National September 11 Memorial in New York City, N.Y. Sept. 10, 2015. Three flags were delivered to three separate groups of first responders on Sept. 11, 2015 to honor the sacrifices they made 14 years ago when two planes crashed into the World Trade Center buildings. (courtesy photo/Airman 1st Class Latasia Gross)