Whatever happened to the Right to Privacy?

Hey, if employers, or schools, or THE GOV'T want to check out someone's Facebook account (or any other social media website, for that matter), in my opinion, they can go to it just like any other visitor. But demanding (or even asking for) the passwords of those accounts in order to have full access is a violation of individuals' freedoms as far as I'm concerned. Hopefully, the ACLU can make a difference seeing as how they fight for ALL our Constitutional rights, liberal OR conservative. Just ask Sean Hannity.