As Donald Trump Calls for Wall on Mexican Border, Smugglers Dig Tunnels
Nogales, Arizona --- On an embankment that runs along a towering steel fence separating this border town from its Mexican sister city, a patch of new concrete with a date carved into it stands out, marking the exit of a tunnel Border Patrol agents sealed in May.
Dozens more like it snake around town, part of a vast underground network that Mexican drug cartels have used for years to funnel hundreds of pounds of illicit drugs into the United States. When Border Patrol agents find the tunnels, they dump concrete to seal them and stamp them with the date that they are shut down. [...]
During his immigration speech Wednesday in Arizona, Mr. Trump said his border security plan would use the best technology, including above- and below-ground sensors to “find and dislocate tunnels and keep out criminal cartels.”
But no technology exists to reliably detect the tunnels, and experts say it may be years before such a system is developed.
Glenn Spencer -- American Border Patrol
Forbidden by Saul Alinsky?
The New York Times argues that merely tunneling under it might defeat Donald Trump's border wall.
The Times argues, with plenty of experts backing them up, that tunnels are very difficult to see using known technology. What the Times fails to report is that the noise made by tunneling, and the very use of tunnels, could be rather easily detected along almost all of the US/Mexico border.
As we pointed out yesterday, technology known as SEIDARM has the ability to detect seismic activity all along the border.
Unlike other ground sensors, SEIDARM's patented technology would allow the US. Border Patrol to monitor activity all along the border in a seamless manner.
Sensors, called geopods, are connected to a computer that looks at five miles of data --- called segments --- at a time. Any disturbance such as digging or using a tunnel, would be flagged by SEIDARM's algorithm and reported. Any number of SEIDARM segments can be joined to make a line as long as necessary --- including the entire border.
SEIDARM's geopods are staggered, allowing the algorithm to triangulate on the source of signal and determine its relative bearing and location.
People usually walk across SEIDARM's zone of detection in minutes. Digging tunnels can take weeks.
SEIDARM can detect people walking at more than 400 feet. How difficult would it be to detect people digging, or using a tunnel 80 feet underground? How about 500 feet away?
In one border area --- San Diego --- intense human activity might overwhelm SEIDARM. The rest of the border is relatively ‘quiet', however, making the job of detecting tunneling and tunnel use fairly straightforward.
If you still have doubts, take the time to watch this 4-minute video.
Then ask yourself --- could SEIDARM detect tunneling?
But why isn't SEIDARM being used?
Because its use has been forbidden by Saul Alinsky.