‘Doomsday Preppers’ Demonstrate Sel

‘Doomsday Preppers’ Demonstrate Self-defense
Jay Belvins and Matan Gavish share their survival and emergency preparedness skills in hand-to-hand combat that they say could be important in an end-of-the-world conflict. Their show “Doomsday Preppers” airs on the National Geographic Chanel.
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