Ahahahahaha. I'm sorry, just what a complete and utter gullible person you have to be. (You are wrong) to think a few bad seeds represent the entire population of Muslims in the past. Why don't I name good old Hernades Cortez and his conquistators whom spread christianity and the cost of the entire Aztec and Incan civilization. Boom. That makes Christians extreme, by your logic.
According to your logic (nor have I ever heard of the assassins raping little boys. Guess who also committed a ritual suicide rather than face the romans? Members of the Jewish rebellion who fled to that 'impentriable' fortress), the greeks were all pedophiles because it was practice for the males to have a sexual relationship (no sodomy or oral though) with a younger boy. Not all of them surely followed this, but the greeks must have been pedophiles because certain city states did!
The sect of Islam that the assassins belonged to (calling themselves Nizaris) were known for their lacking fear of death, and working as assassins. This is no more barbarous (one might even say less so) than waging war and causing civilians and soldier alike to suffer because of the conflict you have with a political leader.
You can't accurately compare the rough and lawless times of the past with those of today. Christianity and Islam had barbary and honor. Christians came to the holy land to murder and butcher, the Muslims went and enslaved pilgrims and executed Crusaders, just as Christians did the Muslim soldiers. We are inclined to point out the violent acts of faiths in the past, but it's no more accurate than stating 'LOOK! The romans butchered and destroyed many cultures. That means Italians from henceforth will inherit that.' or for a future generation to think because of WWII, the Germans have it in their blood to be warmongerers.
By the way, didja forget that Catholic priests have been doing that too?

I guess those catholic priests and abortion-center bombers make catholicism and christianity extreme nowadays too.
Removed trolling-Valus