My point was about the selective enforcement of a requirement, not about the merits of government-issued ID. But it's fair to discuss all aspects of my comment. You are absolutely right that having a government-issued ID and providing it upon demand of government agencies aids the efficient operation of the government. It also is indispensable for efficient government tracking and control of individuals. You might even paraphrase all that as "it helps the trains run on time." Look up that phrase if you are interested in the difference between individual freedom and government efficiency/convenience. I was only annoyed by the more strict requirements for citizens vs non-citizens. Perhaps you missed one of my points (the show-us-your-papers thing) about how it is considered a violation of civil rights for the police to simply request your ID (your papers) without probably cause. How nice for illegal aliens. And to your point about how glad immigrants would be to have SSNs, I question that. The current largest dispute around voting rights is whether requiring a government-issued ID in order to vote is a violation of civil rights. The largest outcry against voter ID requirements comes from the black community and from illegal immigrant rights organizations. Now, why shouldn't they gladly show that ID in order to exercise the right to vote, just as I duly registered and identified my children to receive their rightful education? We are back to the issue of selective enforcement, and selective outrage over this or that brand or degree of selective enforcement. ID for white kids to go to kindergarten? That's good! ID for non-whites and illegals to vote? That's bad! Strict entry requirements for almost every country on Earth? That's good! A pause and reexamination of historically lax US entry requirements? That's bad!