Twitter is @Snowden.
They damned well better know something.
Let me ask you, think logically, what is confidence? What does it mean to confide in somebody? What is confidentiality? What happens if you undermine it? Ask @Snowden, he should know, right? So, expand that, what is FB? What is trust when millions of people have given over so much personal information? What about those who don't like it, don't want to participate in the FB 'community'? Are they track as well?