Trump says wall is negotiable everything is.
Cant disagree with that.
I'd be just as happy,maybe more so,with towers every half mile with a couple of ma deuces in em.
That would negate the environmentalist concerns about animal migration...I mean the four legged kind.
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The " wall " doesn't have to be physical steel or rocks or cement.
It can be technical. It could be minefields and / or towers with automachine guns that blast anything that moves within their field of fire.
Anything and everything that makes illegal crossing difficult counts.
We could even have a bounty on illegals caught within 100 ft of the fence. Sell hunting licenses and dedicate the fees to improving the " wall ".
Mexico shoots people crossing it's southern border and most nations do.
The U.S. and Canada are the only two modern industrial nations that DON'T have a wall or something to protect their border.
We spend billions training our troops how to patrol borders for OTHER countries but refuse to defend our own.
We should have OUR troops on the border as training for being sent to defend the borders of Iran / Iraq / Syria / etc. etc.