Do you agree with supporters there should be no system in place to id illegals once arrested?

No I don't agree and only a bunch of illegals would disagree. Here's a clue people. If you're in a country illegally you don't have rights ! You violated Federal Law and are a criminal ! Undocumented means simply that you are illegal. you have no right to remain in the country until you are legal ! "Undocumented " is a political phrase to minimize the real status of illegal. If it looks like a duck ! quacks like a duck ! walks like a duck ! IT"S A DUCK!!! calling it a cat doesn't change the fact it's a DUCK! Immigrates only have one right ! to return to their country of orgin. Try this in Mexico and see what happens. Mexico has one of the toughest immigartion laws in the WORLD ! yet they want to dump their poor, uneducated onto AMerica to support ! this is an outrage !