Over the objections of Vice President Cheney, Americans will celebrate the life of Martin Luther King Jr. on Monday. King will be honored for many things, as "prime mover of the Montgomery bus boycott, keynote speaker at the March on Washington, [and America's] youngest Nobel Peace Prize laureate." But it is important to recognize all the progressive challenges King laid out for America. Providing an inspiring example of how faith can be translated into the public realm, Dr. King used his pulpit to confront – besides racial inequality – poverty, war, civil liberties, hunger and global justice, among other things. "God has commanded us to be concerned about the slums down here," King said, "and his children who can't eat three square meals a day…This is what we have to do." King challenged Americans to surmount the "apathy of conformist thought," and stand up for a series of specific and connected progressive causes.