I'm thinking that if a guest worker program were started, a database system would have to be implemented to ensure that the guest workers were actually working.
If I were a guy in charge of such a thing and saw a number of guest workers in country with no documented income, I'd be curious enough about their activities - after a reasonable period of time - that I'd want some fresh info as to where they are and what they're doing.
Action taken would depend on what they're doing and how faithful they were about updating their whereabouts.
But people that hire these guys want absolutely no proof of their having done so, and that's why I'm convinced that most if not all of the illegals are working under the table. Deductions taken from their wages are probably not reported, so we're taking a double hit: The lost taxes as well as some serious money going out-of-country.
We're helping Vicente Fox's economy at a hell of a cost.
Think about the Florida Department of Child Welfare as a reference. They are not trying to look after the health and welfare of even a fraction of that many children yet just about once a month Bill Oreilly is telling us about another family of pathetically starved foster children.
The politicians pushing the guestworker program have no intention of spending money on building an enforcement bureaucracy on that scale.