Libya controls its borders, why can't we?

Al-Ahram Weekly | Egypt | Restricted borders:
"Returning labourers say their decision to leave was a result of the new regulations enforced by Libya's Ministry of Manpower under which they are required to pay monthly 25 Libyan dinars in income tax, 14 dinars for insurance, 15 dinars for an Arab identity card and 60 dinars for an accredited work permit."

Seems like Libya can take steps to control foreign laborers who don't abide by the rules - including identity cards and receipts for income tax and health insurance - even to the point of making home visits to check paperwork. Why is this sort of thing too complicated for the US?