One of the largely discussed topics in the U.S. today is undocumented (illegal) immigrants. Even though it is illegal in the U.S. to hire an undocumented immigrant, some firms still do that. Furthermore, the U.S. immigration law tends to concentrate more on reducing the number of illegal immigrants rather than prosecuting the firms that hire them (though, of course, there are exceptions).

List and briefly explain at least 2 economics-based arguments that could explain why law enforcement is often geared more towards reducing the number of illegal immigrants rather than prosecuting or imposing fines on the firms that are hiring illegal immigrants.