The only solution for power is to create all kinds of "Walls" to fill the gap of the growing Inequality they created and totally control.
Besides the physical walls, they are creating a Human Wall of Police-like-Army armed with conventional war guns to kill the unarmed constituents that actually pay taxes for suppressing their fight for freedom by fear, persecution, intimidation and terror.
Brazil is a country where you can really see what the is a scandalous Gap between rich and poor and the wall of military-police forces they have