I know the claim is that border patrol workers want fencing (not a wall!) that they can see through, but those ballards just look so easily climbable with a little of the right equipment.
I trust the judgment of the Israelis on these things better, and even at that—this wall isn’t enough:
http://www.vocativ.com/398444/border-wall-israel-trump/index.html
Are we sure border patrol just doesn’t want to kill its job? I want 50-foot high, smooth, double walls—with room for border patrol or our military to cruise with their vehicles and advanced detection equipment right down the middle.
I agree with that. I think that tree/pole climbing harnesses could be used by drug mules (average folks would be less likely to risk it), and handed back through the gap. I'd like to see it with the barrel tops we saw in the prototypes. I guess they could just add them later, if they see a problem in practice.
It looks like the approach in the tough twisted river flood plain, will be to back off the barrier a few hundred yards to a mile from the current river bank. That will allow a straighter barrier, easier to monitor and patrol, with a large enforcement zone. That requires buying/condemning the land, but once it is done, is is a powerful long term control measure.