[Mashood]

They probably won’t go over it...but under it.

[SmokingJoe]

What's stopping the wall from having a 20 foot deep, 2-feet wide(or whatever the beck it takes) heavily reinforced foundation deep into the ground, bristling with sensors to detect any digging close by. Heck we traveled 230,000 miles to the moon and back and we can't build a wall?