Pumps' Perplexities

A Wall: An upright structure of wood, stone, brick etc.,
serving to enclose, divide, support, or protect.......So
says the New World Dictionary......

While there are some walls in history that were designed
to keep people "in" (Berlin Wall), most were designed
to keep people "out" (Great Wall of China)......

In these modern times, it appears that the castle walls
are getting larger and larger.....With the migration
of the world's populace, walls are now being made of
barbed wire and razor ribbon.....Such is the case in
Melilla, a Spanish holding, which is "walling" itself
from the main land mass of Moracco.....Pumps