The Supreme Court has agreed to hear a case that will decide whether posting violent fantasies on your own Facebook wall can count as a criminal threat to others. Today, the court said that it would take on Anthony Elonis v. United States, a controversial ruling that landed a bitter would-be rapper in jail for over three years. When violent fantasies are posted publicly and easy to find, does it matter whether they was actually sent to the target? In 2010, the 27-year-old Elonis used Facebook to express his rage after his wife left with their two children.