I am going to run in the Spartan race in February. For anyone who is unfamiliar with it, it’s an obstacle course race, with, among other things, walls. I was thinking that they should add Donnie’s “beaded curtain” wall to it, and see what people would come up with to breach it.
If the wall is made of steel poles, it seems to me that it would be pretty simple to make battery - powered electromagnetic boots and hand grips strong enough to climb it. Then, make them in large numbers and give them away on the Mexican side.