Social Media the Rise of Unintend Consequences

As more unexpected uses flow from social media, will our Privacy Laws need to muscle up to protect us?

Amid reports that workplace privacy law is now pending before the German parliament to prevent employers from using Facebook and other social media to scan job applicants or to pry into workers' lives and other reports from the USA that 45% of employers use Facebook and Twitter to screen job candidates - do you think Australian privacy laws need to be strengthened? Are employers the only issue or do we also need to consider credit providers, landlords and other groups who may already be using social media in this way? 

The German bill also contains prohibitions against snooping into employees' emails and secretly recording workplace activities. As an article on the topic appearing on internet.com states:

"Under the law, prospective employers could perform basic Web searches on applicants, and could evaluate their profiles on business-oriented sites like LinkedIn, but Facebook would be off-limits, at least for the purposes of evaluating a candidate's worthiness. How to enforce such a law (which on its face seems unenforceable) remains an open question."

Do you think even if such laws were made they could be enforced?