An excerpt from James Fallows on the recent Arizona news:
Here's the point of comparison between the impending Arizona situation and China: it's no fun knowing -- as citizen and foreigner alike know in China, and as Hispanic-looking people in Arizona soon will -- that you can be asked to show proof of your legality at an official's whim. But if it's sobering to think that the closest analogy to a new U.S. legal situation is daily life in Communist China, we should also look on the bright side. With some notable and serious exceptions, I typically did not see Chinese police asking for papers on a whim. Usually something had to happen first. Maybe soon the Chinese State Security apparatus can travel to Arizona and give lectures to local police and sheriffs. They can explain how to avoid going crazy with a new power that so invites abuse. "Civil Liberties: Learning from China" can be the name of the course.