Funny, if you start arresting those you know about, the others will quit hiring illegals. And the illegals that are here will self-deport. These are not difficult concepts. This logic is used to crack down lawbreaking, from drug dealiong to speeding. All it takes is will, which Bush is lacking.
You lost the debate. The American people have spoken out overwhelmingly against this. And they are just getting started.
They can't arrest someone who never gets caught or turned in.