www.thinkprogress.org/justice/2014/08/14/3471110/how-police-in-ferguson-should-have-handled-crowd-control/
"In a 2012 article for the FBI Law Enforcement Bulletin, Masterson laid out the conclusions reached by law enforcement agencies around the world who’d researched the best way for police to interact with a crowd that has the potential to become disruptive. The answer: police should do more or less the exact opposite of what they have done in Ferguson."
