Another Beheading

It appears as if the Islamists have brought more non-Muslims to "justice". The remains of the two American soldiers from the 502 Infantry Regiment who were missing have apparantly been found by American forces. My question is this: is all this violence being perpetrated by Muslims in the name of Allah simply a case of a rogue group using "God" as their justification and recruiting tool for seeking power and riches? Or is the end goal of Islam really world domination, subjugation, and conversion by any means necessary?

Pyro