The INS hasn't a clue about what is going on.
It is like the Environmental Protection Agency a few years ago having to evacuate their own building, from toxic fume buildup in their own building for several years.
The E.P.A. still will not release publically the information on how many people died from that incident.
I remember an incident about 20 years ago, when I went to pay for the fuel I put in my truck at a local gas station. A farm bus had just pulled up, so I found myself in line at the cash register with about 25 Mexican nationals.
An INS agent walked inside, and immediately confronted the only white-skinned person in the line-me! He spoke to me in Spanish, and I answered him in English. He wanted to know where I was born. I told him "Montebello, CA", and he left the building.
I figured he was either new on the job, or too lazy to actually risk having to arrest anyone.