You check in at the airline ticket counter. But instead of a boarding pass, you get shackled with an electronic bracelet which tracks your every move, contains all your personal information, and can shock you senseless. This vision of the future of air security is being floated around the Department of Homeland Security’s research and development office.

According to a video promoting the so-called EMD Safety Bracelet, all airline passengers would be required to wear it “until they disembark the flight at their destination.”

The device, in addition to storing all of your sensitive personal information and tracking you with GPS, would allow someone to activate it remotely and immobilize the wearer for several minutes. This is EMD, or electro-muscular disruption.

And the Department of Homeland Security is interested in buying them. ...