Capt Amerika, on 04 February 2013 - 07:15 PM, said:
The Great Wall of America!
It did wonders in China, think of the employment opportunities and the only way in is through the approved border crossing stations built into it.
You drive spikes so deep into the ground tunneling is impossible and you stop the nonsense.
Fences do nothing. Massive brick and mortar structures on the other hand.....
Something like that. But you are correct in that fences do nothing. They are a single point of defense (a single point of failure). Anything Man-made can easily be defeated. But a wall would be too expensive. It would be better to have a line in the sand.
DieChecker, on 04 February 2013 - 07:27 PM, said:
Landmines. And signs warning of landmines. After a couple dozen people go BOOM! after ignoring the signs, crossings in that area will cease. Once the crossings have ceased in an area, the signs alone (fear) will prevent crossings.
As much as landmines would be fun, it wouldn't persuade the crossings to stop. You need to dishearten them trying to cross a barrier as I had described earlier would do wonders in discouraging them. Have helicopters fly overhead harassing them until they either turn around or give up.