I use Mexican illegal aliens for this example as that is the data that is available.

The bean counters tell us that illegal Mexicans in this country cost taxpayers 16 Billion dollars a year.

What is the second greatest source of income in Mexico behind oil exports? Some 20 Billion dollars a year are sent by Mexican illegal aliens to family members in Mexico. Confiscate that money and you have a 4 Billion dollar profit. Tell you political representative that you want this to become the law of the land. It will help reduce the national debt too! :)