New surveillance towers at U.S.-Mexican border should spot a human at 7.5 miles | Government Security News
Israel uses this type of surveillance, to monitor the Gaza strip. They also have a 300 foot radar, that gives them even more in depth info. Using this to track movement up to the border, allows for rapid positioning of a response force.
This distance also handles many of the Maquiladoras, so that activities can be monitored, and the appropriate authorities notified of suspect activities. It will also allow for tracking of Maquiladora manager's to and from the border check points. Suspect activity can be radioed to the managers to allow them time to avoid dangerous situations.
The technology is pretty much off the shelf, and can be installed it ether a fixed or mobile platform. Israel has them situated on most of their guard towers, and on a whole fleet of jeeps and trucks. With the reach they have, people doing suspect activities can be tracked often to their staging points, or even homes in some cases. This also would work over the lake, where a lot of activity is, and boats can be tracked to the shore on both sides.
Using the surveillance system, drones can be directed to track people even further into Mexico, with video for recognizing people and vehicles used.
This actually can be a huge success, in clamping down border incursions, making the actual legal crossings choke points. With proper surveillance, suspect activity can lead to pinpointing suspect vehicles, for even more success and speed at the crossings.