The discovery of a stowaway holding a handful of boarding passes on a Virgin Airlines flight is the latest black eye for the Transportation Security Administration. But other countries are using technology to prevent incidents like these from happening.

Erroll Southers, former assistant chief at LA International Airport, and former TSA Administrator nominee, is now a professor of homeland security and associate director of the CREATE Center at USC, and works with airports and security agencies around the world. He explained some of the options to serve citizens, and save headaches for TSA.

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