Shouldn't be much more expensive than building an Interstate from the Texas coast to California..
It would provide jobs, and I would bet dollars to donuts that thousands of Mexican American Citizens would be more than willing to help build it..
Just to be absolutely clear to all....
I have Latino blood in the family..
Both neices and nephews..
They don't have any "love" for illegals either..
I would like to see two walls with the equivalent of an interstate between them... well some kind of highway the troopers can roll up and down quickly when there's a breech. Use those prefab 30ft sound barriers that they use to block freeways off from neighborhoods. It could go up fast. Issue warnings that any heavy equipment used to attempt to breech "The Wall" will be disabled. Then do it.
Stopping them before they get across is SO much more desirable than trying to get them out once they're in.
Course there will be those on this thread that will tell us how it's impossible, can't do, no way, won't work, grin and bear it, lie back and enjoy it, it's inevitable... to them I say, "Go To Hell", or more simply, "Nuts."