Anger and despair swept through many parts of America after a Missouri grand jury decided not to indict Darren Wilson, a white police officer, for killing Michael Brown, a black 18-year-old.

The Rev. Martin Luther King Jr. dedicated his life to much more than achieving racial equality. That goal, he said again and again, was inseparable from alleviating poverty and stopping war. And he reiterated this theme after being awarded the Nobel Peace Prize 50 years ago this week.