Forbes: The DOJ Wants To Take Away Online Privacy. And A Court Says Okay by Frank Miniter:
Even if you didn’t commit a crime, and so no warrant has been issued (per your Fourth Amendment rights), the government can still take away your online anonymity, says a court. Even if all you did was use your First Amendment-protected right to speak about a private company online, the government can unmask you.
This is what occurred in a ruling against Glassdoor, an online job-review website. Judge Diane J. Humetewa of the U.S. District Court for the District of Arizona ruled that the U.S Department of Justice (DOJ) can compel a private company—say, Facebook, Yelp, Twitter…—to give up your private information just because you expressed an opinion online.
Glassdoor, which is a California-based company, has appealed the ruling to the Ninth Circuit Court of Appeals.