Potential Employers and Social Media

I just sped read an article on yahoo about potential employers asking job candidates to provide their user names and passwords to social media networks like facebook and twitter. I find that cray cray. I don't even understand how an employer would find that appropriate. What a huge invasion of privacy! I think it's one thing to view a candidates page but to access it is completely wrong. I do understand why an employer would at least want to see the social media you use. There are a lot of dumb people out there who post half naked pictures of themselves, drunk pictures of themselves, or for the love of God can never grasp the grammar or spelling of their native language. Seeing this could keep potential employers from hiring a bad person but it could also keep them from hiring the best candidate who just gets picture happy when they drink. The people who don't filter what they put out for the world to see probably have other problems. Personally, I would decline to give anyone my password to any of my social media outlets or my email addresses and I barely put anything up. The pictures on my facebook are of my nieces and trips I've taken. I only tweet on Twitter to give me breaks in the timeline so I know what I've read. I would find this to be a huge invasion of privacy and why would I want to work for an employer that asks that? Clearly our values do not match up and that may mean it's not a good fit. Plus for most positions you apply for you have already submitted an application, a cover letter, a resume, at least three references, gone through a background check and have possibly taken a drug test. You'd think 6 steps would be enough. I guess the moral of this story is to be careful of what you put out there (even though you should be anyways) and decide how much of your privacy you are willing to sacrifice for a job.