No one can deny that proper enforcement of employment restrictions can and will be remarkably more effective at stemming illegal immigration than the system of random harassment that we currently have in place. But I'm am also very wary of "technological" solutions to the problems. In an age of 10+ percent unemployment I still have to jump through 14 hoops if I ever want to talk to a human being on the telephone at any large company. It's time we understood that "efficiency" and "full employment" are in direct conflict with each other and stopped worshiping efficiency at all costs.
My slogan for years has been "Never Trust A Robot". Nothing I see coming down the pike has changed that outlook.