In 2017, an astounding 3,600 guns were confiscated from airport security check points. Most people simply say they forgot they had a loaded firearm in their bag. There are as many guns in the U.S. as there are people.

https://www.nbcnews.com/nightly-news/video/tsa-record-number-of-guns-seized-in-u-s-airports-1005968451864