[No_Doll_i]

Since he cannot use concrete right now, maybe he could start with a REALLY deep, REALLY wide moat and fill it with gators or land mines or something. He could build a fence on the US side and man it so anyone that did get a across would just be shot. :-)

[STARLIT]

You have a plan! I like that. LOL

[bagster]

Since he cannot use concrete right now,

Surely there is a new concrete-like invention that could be used to build walls. If not, toss in a pinch of parsley and call it "buttcrete" or sumpin'

That's right. I just called you Surely.

[grey_whiskers]

I like the way you think. :-)