So how effective is violence? Political scientists have recently tried tallying the successes and failures of violent and nonviolent movements. The evidence is piling up that Gandhi was right—at least on average. In separate analyses, Audrey Cronin and Max Abrahms have shown that terrorist movements almost always fizzle out without achieving any of their strategic aims. Just think of the failed independence movements in Puerto Rico, Ulster, Quebec, Basque Country, Kurdistan, and Tamil Eelam. The success rate of terrorist movements is, at best, in the single digits.