Five Mexican generals

To stop illegals coming across our border and save a lot of money at the same time:

Divide the border into 5 districts. Create 5 escrow bank accounts of $2mil each. Offer each of these to a Mexican general with one condition. For each illegal we catch on our side we subtract $10k from the relevant district account. The Generals can get the balance in the accounts after 2 years, Then we do it again.
(Heard some Texas radio personality say this.)