The Answer to Border Security KVOA tells the story
KVOA-TV -- Tucson -- December 14 Brandon Gunnoe: Is this right here the answer to border security? It's a little geophone. It's a magnet inside of a coil. As you can see, it's very tough, but it can still see the smallest vibration like somebody walking across the border and today we got a demonstration of how it works. American Patrol Report
Watch this report here. It gives a brief glimpse of how the Sonic Barrier, a system under test by American Border Patrol for the past year, could help solve the border problem.
Then go to American Border Patrol dot com and see exactly how this is done.
Then, contact your congressman and have them get the facts on the border and a realistic solution.