I don't know anything about low-salary workers, but high-salary workers suffer from the H1-B system. At least half a dozen of my friends (from London) have been offered jobs (by Microsoft, Google, Six Apart and Qwest) in the US using the H1-B system, and let me tell you, it's a slow and painful process to put yourself through, especially considering that you're already uprooting your entire life. One friend was even considering moving to Central America and commuting for a few weeks at a time because the H1-Bs had run out for the year.
Carl Bialik from WSJ writes "It seemed like the latest instance of a recurring story: Two Chinese blogs had shut down, apparently the victim of government censorship. 'Within hours, English-language bloggers and Western news media spread the word that the Chinese government had closed the sites,' the Wall Street Journal reports. The BBC spread the word, and its report was picked up by the French free-press group Reporters Without Borders. 'But in this case, it appears the Chinese government wasn't involved, the WSJ reports. 'By Thursday, a day after the shut-downs, the blogs were back up and running. In an interview, Beijing-based journalist Wang Xiaofeng of Massage Milk says he shut his blog down to make a point about freedom of speech -- just one directed at the West instead of at Beijing. He calls the Western press "irresponsible" and says that the hoax was designed "to give foreign media a lesson that Chinese affairs are not always the way you think." ' The BBC later corrected its story."