The issue of gun rights has made the world's busiest airport a nexus of differing airport, state and federal interests for years, against a backdrop of shifting state law.
Last year 144 guns were found at Atlanta airport security checkpoints, a record for Hartsfield-Jackson International Airport. Officials say many instances involve travelers who forget they have a firearm in their bag.
When a gun is found at a security checkpoint at the Atlanta airport, a Transportation Security Administration agent sounds an alarm and shuts down the checkpoint lane.
Atlanta police are called to retrieve the gun from the X-ray machine or wherever it is found. Police take the passenger and gun to the airport precinct, and those without a valid license can be arrested. TSA typically imposes a fine as high as $7,500.