Weeks before Republican Paul Ryan was selected to run for vice president, Sister Simone Campbell -- who heads NETWORK, a Catholic policy and lobbying group -- hit the road to protest the so-called "Ryan budget" recently passed by the House of Representatives. She and some of her sister nuns rolled across the heartland on a bus trip designed to arouse public concern over what the Ryan plan would mean for social services in America, especially its slashing of programs for the poor. Sister Simone says his budget is inconsistent with Catholic social teaching. The U.S. Conference of Catholic Bishops agrees. But other Catholics say Sister Simone and the nuns have crossed the line, becoming too outspoken and political. Robert Royal, editor in chief of The Catholic Thing and founder of the Faith & Reason Institute, believes that issues of economic inequality are being oversimplified. Royal says the focus should be on creating a more dynamic economy for all. It's one of the hottest issues of this overheated summer and it's on Moyers & Company this week (check local listings http://billmoyers.com/schedule/). Watch our field report from producers who rode along on the "Nuns on the Bus" tour, then join a passionate, candid discussion with Sister Simone and Royal.