Ethics and the Foundation of Global Justice. Amartya Sen, September 8, 2017, Paper, “Reverend Dr. Martin Luther King, Jr., wrote in his Letter from Birmingham Jail: “Injustice anywhere is a threat to justice everywhere.” That was in April 1963, more than a half-century ago. He had been jailed for his agitation to end injustice against non-white people in his own country, and he would be killed soon after by an assassin who hated him and his vision.Link