Sonic Barrier Test Range
Photo shows area used to test the Sonic Barrier - a new security system being evaluated by American Border Patrol. The numbers represent the distance to the sensor line in hundreds of feet. In a recent test the system sounded an alarm when two people walked past the "6" sign. In other words, it detected those two people 600 feet away! This system is the answer to border security. The question is - is our government interested?