I recently watched a video called Food, Inc.
The video brought up interesting points about the meat industry and immigrants working at the companies. Many immigrants work in the meat industry. Police often show up at meat industry company buildings and make several arrests every week or so. The question was brought up in my mind: Why isn't the company fined, or even shut down? It shows how 85% of the meat industry is ruled by only 4 companies.
What do you believe would happen to the economy if the companies shut down for hiring illegal immigrants, what events would happen?

Question

I recently watched a video called Food, Inc. 
The video brought up interesting points about the meat industry and immigrants working at the companies.  Many immigrants work in the meat industry.  Police often show up at meat industry company buildings and make several arrests every week or so. The question was brought up in my mind: Why isn't the company fined, or even shut down? It shows how 85% of the meat industry is ruled by only 4 companies. 
What do you believe would happen to the economy if the companies shut down for hiring illegal immigrants, what events would happen?