Friendo, if you placed two chain link fences on the border, scrapers, many of them from the US, would steal the fence within 6 months; Electrify it and they would steal the copper and transformers in three.
So much for high tech. Two heavy duty chain link fences topped with razor wire enclosing an electrified fence would do the trick. But the powers that be want the appearance of protecting the border but not actually protecting it.
Friendo, if you placed two chain link fences on the border, scrapers, many of them from the US, would steal the fence within 6 months; Electrify it and they would steal the copper and transformers in three.