An anonymous reader writes: After Miami resident Claudia Castillo noticed a cop speeding down the freeway without a siren, she pulled him over and told him to stop going so fast. The cop's police union chief, Javier Ortiz, decided to take the woman's private details and put them on his Facebook account, asking friends to call her and give her a piece of their mind. Of course, harassment ensued. Now, Anonymous hackers have decided to return the favor and dox the police union chief as payback. For once, these hacktivists did something useful.