[RedStateRocker]

Landmines, snipers. ‘Nuff said.

[Howie66]

Hell. Turn the length of our southern border into a combination rifle, sniper and artillery training and practice range. Problem solved.

[central_va]

Landmines can be dug up. Snipers posted elsewhere. Walls work 7/24/365. Walls are apolitical.

[MrEdd]

Remove all those water stations.
Replace with scorpions and rattlesnake dens.

[Salgak]

Manjacks. M-60 or M-2 machine guns on a automated turret with IR laser sensors. Something changes in the sweep, the gun slews to it and lights it up.

[AnotherUnixGeek]

The Trump administration would be foolish to revive the virtual border fence in place of reliable physical impediments

...and armed sentries. An un-manned wall will not be effective. The wall needs sentries posted at regular intervals - it's a national security issue.

[ThePatriotsFlag]

Exactly. Landmines solve all of the problems. You don’t have to “blow up” all of the people coming across, and nobody will know where the land mines are located (sort of like concealed carry). So a couple of people get blown up ... make sure CNN covers it (or Whoraldo Rivera) showing the carnage in detail. Then folks will stay on their own side of the border or risk vaporization. Also, landmines disturb the countryside and is environmentally, visually, acceptable.

Landmines will cost much less than the wall and will be far more effective.

[elteemike]

And a .50 cal emplacement every 500 meters or so...

There’d be no shortage of free help in the form of volunteers to man ‘em...

[elteemike]

Like this...

http://overpassesforamerica.com/?p=32883

“Build the wall...Build it tall”...