“If we had to wall the entire 2000 mile border it would be over $40 Billion.”
These are some of the most expensive miles to build. For flood control purposes, the base is a massive concrete levee, built to FEMA specs for hurricanes. Becasue it is a super hot spot for illegal crossings, each mile is tricked out with all the bells and whistles (lights, cameras, alarm systems). On top of it all, there is private land that has to be acquired or compensated.
In other places, good barrier is being built for $4 million/mile.
“Good barrier”? I haven’t seen any planned wall design yet that won’t be scalable by the illegals.