Most Americans don't realize that jihad is about much more than terrorism.
Even the terrorists don't blow up buildings for the sake of blowing up buildings. There is method in their madness.
Jihad is not mindless mass-murder, nor is it a syrupy "internal struggle to become a better person." No, jihad is the mission to establish and spread sharia.
The installation of Allah's law, believed by Muslims to be a divine injunction, is the necessary precondition to the creation of Islamic societies. While it can, and often is, waged forcibly, Islamists don't resort to violence (or, at least, to more violence) where surrenders, appeasements and capitulations are available.