Time to build an electronic wall in addition to a physical wall.
Put some predators in the air. Check the entire border for tunnels.
High-Tech Border Patrol: 5 New Tricks to Find Smuggler Tunnels
Obama should be in prison.
We are far more advanced in all sorts of “devices” to construct and monitor any border than virtually all citizens can comprehend. I served at the U.S. Army Electronic Proving Ground at Ft. Huachuca from 74-76. That fort is less than an hour’s drive from the Mexican Border in Cochise County Arizona, a known crossing area devoid of much protection.
My prime job was that of tactical and airborne voice and data crypto equipment. The lab next to ours was for the sensors group. We also had an airfield right there that supported our test and evaluation projects. The aircraft used were OV-1 Mohawks. The only real video or camera technology at the time was in the aircraft that would record flights in conjunction with sensor triggers. It actually worked quite well. But the issue of enforcement then and today is physical assets with enough proximity for effective interdiction response.
Now with today’s digital imaging capabilities, which far exceed even mostly analog cameras placed during the Bush years, very isolated and self powered (solar) units can also connect to each other over a wireless network to form a chain of pixel detection to follow and catalog any movement both in real time and in fast rewind and forward to isolate a “target”. As everything is recorded at a central collection server point, all the operators need to do is when those “sensors” are triggered is, if the pixelation alarm does not pick it up, is to query the live-time recorded playback from the nearest cameras to “tag” an entity to digitally follow through a handshake sequence of recordings to the live images of where the “target” is being watched. Then the ground human resources are dispatched for interdiction.
I was part of a team who designed a system much like this not at a border enforcement scenario over 10 years ago. But, the physical barriers are still a must to deter the casual crosser before these elaborate assets are needed.
As for tunnels, new ground penetrating infra-red is available to detect anomalies in ground densities but the easiest way is to have the pixelation disturbance detection along with IR to pick them up when they come out of the gopher holes. That is just too easy as it provides the funnel to focus the interdiction assets arrayed around its vicinity to pick them up when they fan out. Never letting them know they were picked up the instant they popped out of the hole
“Obama took down Bush’s network of cameras.”
Now, WHY would he do that? Hmmmm ....