At this year’s annual MIT celebration of the life and work of Martin Luther King Jr, keynote speaker Eddie S. Glaude Jr., the James S. Donnell Distinguished University Professor at Princeton University, invoked King’s memory in an impassioned appeal for confronting the realities of the United States’ history and the country’s racist beliefs and actions, in order to achieve a more just and equitable nation. Glaude, a prominent political commentator and author of books including “Democracy in Black: How Race Still Enslaves the American Soul,” said at the Feb. 10…