My relative told me to let everyone know all Texas Highway Patrol have to spend two weeks from their families away from their normal patrol areas to secure the US/Mexico border, patrolling by themselves.
That is called putting your money where your mouth is. Not "joking" about electric fences.
I know fences of the right sort in the right places can help a lot however. I spent ten years on the Arizona border myself(not as a leo mind you) and know something of the terrain and the distance between outposts of civilization, and the congestion at the crossing points.
[Not “joking” about electric fences.]
I keep notes and this is how it went;
Cain said he would ‘build an electrified fence on the border, and ‘yes, it could kill people’.
The next day he said ‘it was a joke’.
But still later he reversed again and said, ‘I’m not walking away from that’.
http://www.cbsnews.com/8301-503544_162-20121695-503544.html
Maybe “heartless” is all a matter of “perception”.