between east and west, american-style capitalism and communism. finally on a historic night it came down as east german guards opened the borders allowing east and west berliners to roam their city freely but walls as a means of separating and isolating people and cultures are still a thing including in the united states as evidenced by donald trump s plan for the u.s.-mexico border. i said we need to build a wall and it has to be built quickly. and i don t mind having a big, beautiful door in that wall so that people can come into this country legally. but we need jeb to build a wall. we need to keep illegals out. but history has taught us building a wall whether to keep people out or to lock them in can have far reaching and