Free speech? Getting fired by a blog....

I've seen US agencies cracking down on blogs and postings.  Interesting what's happening in other parts of the world.

UK employee was fired for statements posted to a blog.  And in China, Shi Tao was censored with a 10 year prison sentence.

How invisible should the person posting remain?  This article in CNN's Technology section (Monday, 12/19/2005, "Fighting for free speech on the Net") raises questions.  http://edition.cnn.com/2005/TECH/12/19/internet.freedom/