Maybe American cops are advising the Brazilians?
http://www.nytimes.com/2015/07/21/world/...=5043&_r=0
http://www.nytimes.com/2015/07/21/world/...=5043&_r=0
Quote:Suspicion Falls on the Police After Dozens of Execution-Style Killings in Brazil
Quote:The authorities in Manaus emphasized on Monday that they had not yet identified those responsible for the killing spree. But they acknowledged that many of the fatal shootings were efficiently carried out by gunmen wearing balaclavas and using ammunition normally available only to police officers.