And you think that it would be realistic to recreate a three thousand mile Berlin Wall across open deserts? Guarded by how many troops?
My point is that the border will be crossed. Right now, many illegals cross over every season. Should we lock the border much tighter, they will stay here year-round. You think that's a good idea?
The Belin Wall was meant to keep people inside the Iron Curtain. Construction of a wall on the southern border with Mexico would be a defensive barrier to keep people out of the USA. Its part of our national security and something that should have been built right after 9-11. With a wall like the Israeli`s built on their western border, it wouldn't take any US troops to help in the operation. Just triple the size of the Border Patrol and the manpower will be available.
BTW. If the Feds enforced the employer sanctions contained in Reagan's Immigration Reform and Control Act of 1986, illegal workers would be left with no alternative choice but to leave the US and return to where they can find steady work.