The White House and Democrats in Congress continue to fight over the President’s plan to build a wall along the border with Mexico. A physical barrier is one way to secure the border, but not always the most cost-effective solution. Years of investment by the U.S. government in advanced surveillance and sensing technologies, wide area communications networks, pattern recognition algorithms and compact power generation systems are producing revolutionary capabilities for alternatives to physical barriers. Programs such as the Integrated Fixed Towers and Remote Video Surveillance System could form the backbone of a high-fidelity virtual wall along most of the southern border. I have written about the virtual border wall here.
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