The Walls are going up across the world

[Silent Earth]

https://www.theguardian.com/cities/...ion-gated-cities-around-the-world-in-pictures

 

[Joe SA]

They can build walls all they like, it is not going to keep the masses out, the day SHTF.
(The only wall they wont cross is made of flying copper and lead, better stock up on what you can.)