You're probably also ignorant about the double 20 foot fences topped with razor wire, built by Spain to protect the areas they own in North Africa, from illegal immigrants (Cueta and Melilla being two of them).
The fences with regular watch posts, has a road running between them for Police patrols, underground cables provide spotlights, noise and movement sensors and video cameras to a central control booth.
Also Hungary built a 13ft double border barrier on its border with Serbia and Croatia in 2015.
Which is unbelievably 325 miles long.
What I'm wondering Anja is why you have not mentioned these border fences, much closer to home, while ranting about America.
Just don't like ignorance. No double standards.