Liberal_L33t posted:

...there's no stated or implicit political motive, which is part of the definition of terrorism, and no larger organization celebrating the attacks and demanding more.

Note that Anders Breivik, the shooters targeting Sikhs a couple of years back, and a few others do qualify as terrorism, but they are the rare exception and dwarfed in number and scale by attacks committed in the name of political Islam. Also, as horrible as they may be, white nationalist and other right wing fringe organizations whose ideology inspires these attacks do -not- claim credit, praise the attackers or publicly encourage more attacks on social media. This puts Islamic terrorism in another category above and beyond other forms of right-wing terrorism.