When you're preparing for a flight, it's important to pack everything you'll need for your trip. Also important, though, is making sure you don't have a weapon in your carry-on.
Some people apparently forgot that rule. The Transportation Security Administration said it found 73 firearms in carry-on luggage last week. That's more than any other one-week stretch in TSA history.
Not only that, but nearly all the guns were loaded, and 27 had a round chambered. And that may not even be close to the actual number of guns that made it onto planes.
Last year, the Department of Homeland Security tested the TSA on its ability to find prohibited items, and it was startlingly ineffective.
Undercover agents were regularly able to smuggle mock weapons and explosives past TSA screeners at airports across the country. Out of 70 potential threats, screeners only found three. That's a more than 95 percent failure rate.
If you're caught with a firearm in your carry-on, you could be arrested and fined between $1,500 and $7,500.
The TSA said people often forget guns in their luggage but added you can still fly with a gun as long as it's in your checked baggage and you clear it with the airline.
This video includes images from Getty Images.