Protesters clash with law enforcement after a federal agent shot and killed a man on Jan. 24 in Minneapolis (Photo by Arthur Maiorella/Anadolu via Getty Images) The murders of unarmed civilians on the streets of Minneapolis, including the killing today of the intensive-care nurse Alex Jeffrey Pretti, would not come as a shock to Iraqis in Fallujah or Afghans in Helmand province. They were terrorized by heavily armed American execution squads for decades. It would not come as a shock to any of the students I teach in prison. Militarized police in poor urban neighborhoods kick down doors without warrants and kill with the same impunity and lack of accountability. What the rest of us are facing now, is what Aimé Césaire called imperial boomerang. Empires, when they decay, employ the savage forms of control on those they subjugate abroad, or those demonized by the wider society in the name of law and order, on the homeland. The tyranny Athens imposed on others, Thucydides noted, it finally, with the collapse of Athenian democracy, imposed on itself. But before we became the victims of state terror, we were accomplices.