There is a lack of desire to fix the problem. I am pretty sure that all they would have do is tell Juan Valdez that we have a sent up drones to protect the border and he would have difficulty getting anyone to want to fly.
It wouldn’t be hard to use IR to spot them. After that ...
Then they’ll just buy some quadrotor drones and use those. It is not like the cartels can’t afford them.
“lack of desire”
Nail, meet hammer. We’ve all heard the expression, ‘Where there’s a will there’s a way.’
As far as illegals and drugs go, there’s no will to stop them from the Down Low Won and his choom gang, Janet, Eric, et al.
They send them guns, wave them through. It would make a murder of crows blush, but not these birds.