This is such OLD tech that it makes you want to cry.
They were used in Vietnam, and that was quite a few years ago! You can sometimes find them for sale at electronics surplus stores.
They (ground motion detectors) are disguised to look like rocks. They blend in with the ground, and pick up motion -- vehicles, footsteps, whatever -- and transmit the signals via radio to a monitoring station.
With a few of them in an area, you can tell where someone is, how many "someones" there are, and what direction they're headed.
I gotta presume that the technology has come a long way since the stuff they used in the 1970s, but even that would be of major utility on the border -- IF they'd use them!
The problem is not one of "cannot do", or even "cannot understand the problem"; the problem is one of WILL, and AGENDA.
They do not want to keep the illegals out. They DO want to keep them here, because to those who "own" the government, they are an ASSET. They are the "new slaves" for the "new plantation economy." They work hard, for little pay and no benefits, for long hours, and, they do NOT complain.
Of course, that's because they are I-L-L-E-G-A-L aliens. Someone who is ILLEGAL is not going to make waves!
The instant they're made legal, they have NO more incentive to work like slaves!
So, guess what? There will be a "need" for MORE illegals -- to "do the work the legal immigrants won't do."
Of course, for the government, it's a win-win. They will have several tens of MILLIONS of new voters to pimp themselves out to, and, in some dark corner of the political "mind", there's the absurd notion that these folks will somehow save the doomed SSA.
Rational analysis of course puts the lie to THAT insanity. A critical mass of Mexican voters -- themselves competing with the NEW illegals who will take their former place -- are NOT going to be kindly disposed to paying confiscatory tax rates in order to support the aging "el gringo nation" -- and, with their enormous voting bloc, and the political power it will wield, they will not allow that to happen.
More likely, you, me, and the rest of us "gringos" will be shuttled to an early demise via the groundbreaking work of the heroic "medical ethicists" who are as we speak laying the foundation for the "termination" of those with an "expectation of diminished quality of life."
Brave New Soylent World. With Taco Sauce, to go!
You've nailed it on the head.
About those surrvelliance detectors dropped from planes...
The conversation was about the expense and time it would take to build a wall. This came up as a way/method to do it quickly. My question was, "So, you come up with a way to detect the amount of people crossing over at specific places. How to you stop them?"
The detectors are supposedly very sophisticated. You are right, unfortunately, it isn't a matter of "can" but of "will"... and agenda.
FRegards,
EM