Facebook — it's the most disgusting spy mechanism ever invented. This is the most comprehensive database about people, their relationships, names, addresses, location and communication with each other. And all of this is in the United States, all accessible to American intelligence.
Facebook, Google, Yahoo — all these major U.S. companies have built-in interfaces for U.S. intelligence. Which courts and human rights? Exploration works directly. The owners of social networks — the people business. They are expensive to fight in the courts and with the exploration, and each time the merge information for a single user. So they have automated the process.
You have to understand that, for example, adding another in Facebook, you are helping to save voluntarily American services to expand their database.