As for your challenge here, I've turned in employers who I know hire illegal aliens. I turned in a huge employer to the IRS who I know isn't withholding for his illegal employees. I hope they gut his business and INS swoops in and deports the invaders. I will jump at the opportunity to do it again if I have strong enough evidence that someone is hiring an illegal alien.
Good for you spiff, good for you. You deserve a medal for your action.