or better, fly to Berlin and visit the museum.
http://www.mauermuseum.de/english/frame-index-mauer.htmlThe "Haus am Checkpoint Charlie" tells the story of the Berlin Wall, the most fortified border in the history of the world.
According to
http://en.wikipedia.org/wiki/Berlin_Wall, about five thousand people escaped to West Berlin through this wall. The East Germans had these things going for them: a small isolated area to defend (about 110 miles), shoot-to-kill orders, dogs trained to kill, landmines, spikes in the river running through part of the East-West Berlin border, and every other brutal, inhuman thing you can possibly devise to keep someone in. They had the best border troops stationed in Berlin, and those East German soldiers were supported by the Soviet 20th Guards Army. PLUS, they were trying to keep Germans, a very well-disciplined people, out of West Berlin. What were these people seeking? Freedom, reunification with relatives who live in West Berlin, and access to quality consumer goods; the DDR for all its faults kept its people fed and employed...and a lot of East Germans LIKED being Communists. Given ALL THOSE ADVANTAGES, five thousand people escaped in 38 years--on average, a little over one escapee every three days for the life of the Wall.
The United States has a different situation: the Mexican land border is 2000 miles long and there's open ocean at both ends. We can't spike the Rio Grande. We can't install landmines. We can't go around shooting border crossers or letting dogs eat them. And we're trying to keep Mexicans out--hungry ones with no jobs and no future in Mexico, who know they can run up here and get an under-the-table job that pays far better than anything they can get in Mexico.
If the East Germans had all these advantages in keeping people in, and they STILL lost one every three days, how in HELL are we going to keep Mexicans out?