The emergence of American homegrown terrorists and terrorist networks have been motivated and radicalized by the extreme Islamists. If the term radicalization and terrorism can be concerned then I can be stated that the transformative experience and procedure can cause ideological and behavioral changes for foreshadowing the commitment of an individual to the violent extremism. Extreme Islamists often support the violence for creating a threat for the citizens. Another reason for the motivation for the homegrown terrorists and the terrorist network is that the extreme form of Islam justifies their violent activities and tendencies in a proper manner.