Unfortunately, almost no one learns about it when our government investigates our online activities, without any legal probable cause for the search. Many of us rarely write a paper "snail mail" letter, which is subject to the government showing probable cause prior to opening it. But, Email in not real mail, according to the government's privacy-invading reasoning. I have nothing to hide in my Emails, but that is not the point. The point is that for many years the Constitution is failing me and everyone else who makes this devil's bargain in the name of national security.
Good for Twitter for standing up to the government on our behalf. Theirs is not a revolutionary position. It is a logical and defensible argument that takes on the government's Orweillian "what you don't know can't hurt you" policy.
Social media is what makes it possible for Tunisians to stand up to their government. Asking for our own reasonable online privacy here in the United States does not mean we have to take to the streets. We just have to notice and speak up.