Video cameras would allow border patrol to see the other side of an opaque wall, and watching the wall could be done by crowdsource and/or computer vision.
I’m surprised it still wouldn’t be quicker and easier to change the way we accept/process asylum claims than relying on an inanimate object to do the work.
They mostly only make the asylum claims after they’ve been caught, so I think we definitely need the wall.
But it all needs to be changed. Apparently Trump has had the power to stop main immigration draw all along, as the well-regarded former DoJ attorney Sidney Powell wrote in October last year, but he apparently doesn’t have the will to do so and instead is now talking bringing more in legally so they don’t have to bother with coming in illegally. It was a bad sign when he got Kushner and Pence involved—aye-aye-aye!
The purpose of the wall is to protect the US from its own politicians,