Immigration

Old Karl has a posting up about imMigration (as he calls it). He makes some pretty valid points, but I think the most impressive one is his first one:

No nation in history has ever successfully blocked either emigration or immigration of people. Ever. No one. The Chinese have tried with their wall. The Soviet Union eventually gave up. Israel has failed. American Indians have tried to block the Navajo from having a homeland. The British Isles tried to block the Normans. The Irish tried to block the Welsh. Americans have tried to block the Chinese, the Japanese, the Irish, the Germans, the Africans, and everyone else. It just doesn't work.

That is the truth, people. Believe it.