There is no immigration crisis -- other than the one created by a small but vocal stripe of opportunist politicians, media demagogues and freelance xenophobes. So it has always been throughout the history of this country when anti-immigrant hysteria periodically reigns during low ebbs in our national sense of security and vision.

The script is as old as the Mayflower: A false alarm is sounded that the values, wages and safety of the current roster of credentialed Americans are jeopardized...