The 4-letter code you never want to see on your boarding pass...

There are plenty of reasons flying is stressful, but one of the biggest headaches of modern air travel is the security procedures. Who knows what fresh nightmares the TSA will have cooked up for you by the time you hit the
terminal?

Well, there’s at least one hint you can use to determine whether or not you’ll be spending a little more time in the security area on your way to your gate, and it has nothing to do with that bottle of water you’re carrying.

As both  Refinery29 and Business Insider have reported, there's a four-letter code at
the bottom of your boarding pass that can tell you whether you'll be pulled aside for extra screening.

If you see the letters “SSSS” at the bottom of your ticket, you’re in for a little extra attention at the security checkpoint. To compound the headache, you won’t be able to print your boarding pass at home, and will have to get it when you arrive at the airport. Full story...

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