0roo0roo
No Lifer
yea, that's about the best you have to offer.
If the best you have to offer is sourced from comedy central, your side is in trouble.
Tunnels only work where there are structures to hide exits close to the border.
The entire border is not populated on both sides continuously by any stretch.
If you are so clever I'm sure you can think of measures which don't involve an underground wall, so maybe stop insulting peoples intelligence by claiming that is the only solution.