Tunnel-detection technology at US-Mexico border: Is it worth the
effort? The US government is researching use of robots,
microgravity sensors, and other high-tech tools to find
smuggling tunnels under the US-Mexico border. But police work
may be the most effective tool. (Page 2 of 2) In response to the
problem, the Department of Defense and the Department of
Homeland Security have upped their research on ways to detect
suspicious activity below ground. Homeland Security
representatives recently testified to a congressional
subcommittee there are at least four federal task forces
dedicated to finding new ways to stop tunnel construction. One
project experiments with ground sensors that use seismic waves
to detect movement underground, as well as robots that map the
terrain using infrared and other technologies.Skip to next
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