(Compulsory) national ID cards
Spinning this one off the now-deceased war on voting thread.
Where do you stand on the idea of national IDs (American or otherwise)?
Most conservative religious people I know are staunchly against them, shouting zomg/mark of the beast/end times/etc., and most progressive types I know cite privacy concerns and vague Big Brother fears. But I haven't heard many people make arguments for them (that didn't center completely around illegal immigration) until it cropped up in the other thread.
So do you think the benefits and conveniences of a unified ID system outweigh the concerns, or do you see it as another step down the road of "your papers, please..." ?