In a development that may portend extended disruptions, veteran street organizer Lisa Fithian, previously dubbed “Professor Occupy,” recently trained Ferguson protesters how to “simulate chaos.” Fithian is a legendary organizer who once announced she seeks to “create crisis, because crisis is that edge where change is possible.” She was one of the luminaries of the Occupy Wall Street movement and was a lead organizer in the infamous 1999 Seattle riots against the World Trade Organization that descended into violence. The 1999 WTO event in Seattle devolved into widespread rioting in which more than 40,000 protesters, some using violent tactics, descended...