[spokeshave2]

It was reported that the military being deployed to the southern border will have Jersey barriers....and there was a lot of caustic comment that the invaders can just hop over

However...check these applications of the Jersey barriers:

And here is how the razor wire gets rapidly deployed:

[Freedom'sWorthIt]

If that’s true, that’s the first evidence of anything half effective that I have seen. I hope it’s true.