"All of them have been found by accident or human intelligence," said Ed Turner, a project manager with the U.S. Department of Homeland Security (DHS) Science and Technology Directorate (S&T). "None by technology."
To battle these secret burrows in the 21st century, S&T thinks this will have to change. In partnership with Lockheed Martin, DHS S&T is pursuing a fresh approach that uses sophisticated ground penetrating radar. The Tunnel Detection Project is part of the Homeland Security Advanced Research Projects Agency (HSARPA), a distinct office within S&T set up to think out-of-the-box. HSARPA invests in concepts offering the potential for revolutionary changes in homeland security technologies. If successful, the tunnel detection technology will help agents locate and plug tunnels almost as fast as the criminals can dig them.
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Source: Physorg