Thoughts Without Words: Teacher fired for Facebook post

I have been debating whether or not to post this, but I figured why not? By now, most of you have probably heard about the high school teacher who was fired for a Facebook post in which she said;

the residents of Cohasset "arrogant and snobby," and said that she is "so not looking forward to another year at Cohasset schools."

So I gotta say I am shocked she was fired/resigned. What happened to freedom of speech? She was at home on her own page, expressing her opinions and she is fired.

I have stories about my classes and school on my blog, but I keep them anonymous. But does that matter? This teacher wasn't talking about a single student, it was a general comment. So am I in danger?

Are teachers now "on" 24/7? Are we not allowed to have a personal life? Are we not allowed to express our thoughts and opinions? Sure seems like it.