Where do we draw the line with Social Networks?

Like it or not, social networking is here to stay and is getting further ingrained in your lives. I'm seeing more instances where people are negatively affected by their posts on sites like Facebook. Facebook was one of the safe havens (my opinion) on the internet where we can express our thoughts to our chosen network. Some people use social networks to share random thoughts and others share their deep seeded beliefs. But what happens when your posts reach much farther than your network? 

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A bank worker was fired for her Facebook post comparing her £7-an-hour wage to Lloyds boss's £4,000-an-hour salary. The new Lloyds chief was set for a £13.5million pay package this year. A bank worker got the sack after she criticised her boss's £4,000-an-hour salary on Facebook. Stephanie Bon, 37, from Colchester, Essex, was working as a £7-an-hour as an HR assistant for Lloyds Banking Group when she heard about her new chief executive's mammoth salary. Miss Bon went on Facebook and posted 'LBG's new CEO gets £4,000 an hour. I get £7. That's fair.' But after her bosses heard about the comment she was marched from the offices and fired. 'That's fair': Lloyds bank worker Stephanie Bon, right, was sacked after she criticised chief executive António Horta-Osório's pay deal on Facebook Last week it was revealed that the taxpayer-owned bank offered António Horta-Osório as much as £13.5million in salary, bonuses and other benefits this year to poach him from Spanish bank Santander.

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I realize this is not a US company but it's disturbing none the less. I hope the victim sues the company and wins in order to set a precedent against this type of corporate behavior. Heck, If I was a lawyer, I'd do it for free. Has anybody seen or heard of this on US soil?