Quick Hits Episode 242 - Why it is best to be skeptical about terrorist groups' demise

We often read that a given terrorist group has 'given up the ghost'.  An announcement - and subsequent analysis - regarding the 'end' of Jemaah Islamiyah (JI) in Southeast Asia is an example of misplaced optimism.  So, why do some believe that terrorism ends?   We would be better to assume the opposite.