I was watching Juan Williams on Fox last night, and he was pointing out, almost certainly correctly, that people with darker skin in Arizona will be more likely to have their immigration status checked than will light skinned people. He seems to think that because he comes from a minority group and has dark skin that he has a special duty to police such things. No doubt it is good to have people paying special attention to the issue. On the other hand, it is wrong for someone to be the sole judge in his own case, which is precisely the position Williams, and minority rights advocates generally seem to take. They seem to think that their personal interest in the issue gives them clarity, and not bias or interest.
On this point, many people seem to think that merely having officers ask people for their papers makes the U.S. like Nazi Germany. Hardly. There's a big difference between checking whether people who have committed crimes are citizens and or of they are here illegally, and sending people whose families have lived here for centuries to gas chambers. Amazing that one needs to point that out.
P.S. Since Mexico is complaining about U.S. immigration law, perhaps we should change our law, to Mexico's.