I just finished Jan Brewer's book, "Scorpions for Breakfast", and it converted me to a believer and supporter of SB 1070.
The quote from the administration: "human rights and the **rights of law-abiding citizens and immigrants** makes it crystal clear. Obama doesn't see a difference between legal and illegal immigration; whereas those on the front lines of this border war clearly do. Illegal immigrants committed a crime when they crossed the border illegally.
As for having to show "papers", I live in Texas, where you are required (I believe) to carry a state or federally-issued ID at all times. I've never been stopped for a traffic violation and not been asked to produce my driver's license, regardless of what state I was in