Max Abrams, a professor who works about terrorism, came up with this new definition of "terrorism": Nonstate actors who use violence against civilians for a political goal and haven't been supported by the US. The highlighted part is "new" to those who have not learned from history and the many occasions of U.S. support for (typically extremely right-wing) terrorist organizations like the "contras" in Nicaragua, OUN fascists in Ukraine or Jihadi Mujahedin in Afghanistan. It can indeed be argued that the U.S. created al-Qaeda as well as the Islamic State (ISIS).