This thesis proposes to shed light on the causes for and recurrence of such terrorist phenomena as the London transit bombings. This thesis makes three central claims: that a British policy of multiculturalism enables the actions of a new generation of \"homegrown\" jihadis; that the evolution of jihadi thought through the ages has resulted in a situation in which Islamic extremists find justification for indiscriminate targeting such as occurred in the London transit bombings; and that various socio-economic factors at the very least serve as indicators of likely problems -- if they aren't actually causal.