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Tumbleweeds, i guess, no barrier. just walk right across and they do it. it is a national security issue and an economic issue and a humanitarian issue all wrapped into one. >> and i agree, and there are better ways to do it. with drones, with people on the ground, we dont need to waste money -- let me say one more thing on the wall really quickly. instead of building a physical wall with mexico. i have an idea. why dont we build a wall with russia. thats a real threat, not mexico. lets look to ...