Why would this even remotely be considered controversial when Israel has proven it works?
Along with Unmanned Aerial Vehicles (UAV), drones, ground sensors and tower sensors, we need aerostat balloons equipped with night-vision and infrared technology and other intelligence payloads to see into Mexico looking for illegal aliens before they get to the border. This capability will provide a constant stream of real time intelligence, which can then be down-linked to a multi-agency command center."The Counterterrorism Blog: U.S. Congressman Proposes High-Tech Defense to Prevent Terrorist Infiltration
Course someone in DHS upper eschelon would have to make a commitment to actually analyze and utilize the intelligence.
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