WASHINGTON, DC - MARCH 16, 2007: Luke Wallis (son of Jim Wallis) and Philipino activist Karl Gaspar attend the Christian Peace Witness for Iraq worship service at Washington National Cathedral.WASHINGTON, DC - MARCH 16, 2007: Christian Peace Witness for Iraq worship service at Washington National Cathedral.WASHINGTON, DC - MARCH 16, 2007: Christian Peace Witness for Iraq worship service at Washington National Cathedral.WASHINGTON, DC - MARCH 16, 2007: Christian Peace Witness for Iraq worship service at Washington National Cathedral.WASHINGTON, DC - MARCH 16, 2007: Christian Peace Witness for Iraq worship service at Washington National Cathedral.WASHINGTON, DC - MARCH 16, 2007: A participant prays at Christian Peace Witness for Iraq worship service at Washington National Cathedral.WASHINGTON, DC - MARCH 16, 2007: Luke Wallis  and his dad, Jim Wallis, at the Christian Peace Witness for Iraq worship service at Washington National Cathedral.WASHINGTON, DC - MARCH 16, 2007: Luke Wallis  and his dad, Jim Wallis, at the Christian Peace Witness for Iraq worship service at Washington National Cathedral.WASHINGTON, DC - MARCH 16, 2007: Clergy walk in procession with candles at Christian Peace Witness for Iraq worship service at Washington National Cathedral.WASHINGTON, DC - MARCH 16, 2007: Clergy walk in procession with candles at Christian Peace Witness for Iraq worship service at Washington National Cathedral.WASHINGTON, DC - MARCH 16, 2007: A clergy member sits in the audience with his daughter at the Christian Peace Witness for Iraq worship service at Washington National Cathedral.WASHINGTON, DC - MARCH 16, 2007: A clergy member sits in the audience with his daughter at the Christian Peace Witness for Iraq worship service at Washington National Cathedral.WASHINGTON, DC - MARCH 16, 2007: A clergy member sits in the audience with his daughter at the Christian Peace Witness for Iraq worship service at Washington National Cathedral.WASHINGTON, DC - MARCH 16, 2007: A clergy member sits in the audience with his daughter at the Christian Peace Witness for Iraq worship service at Washington National Cathedral.WASHINGTON, DC - MARCH 16, 2007: A clergy member sits in the audience with his daughter at the Christian Peace Witness for Iraq worship service at Washington National Cathedral.WASHINGTON, DC - MARCH 16, 2007: A clergy member sits in the audience with his daughter at the Christian Peace Witness for Iraq worship service at Washington National Cathedral.WASHINGTON, DC - MARCH 16, 2007: A clergy member sits in the audience with his daughter at the Christian Peace Witness for Iraq worship service at Washington National Cathedral.WASHINGTON, DC - MARCH 16, 2007: Candles flicker on the altar during the Christian Peace Witness for Iraq worship service at Washington National Cathedral.WASHINGTON, DC - MARCH 16, 2007: A clergy member sits in the audience with his daughter at the Christian Peace Witness for Iraq worship service at Washington National Cathedral.WASHINGTON, DC - MARCH 16, 2007: Participant at the Christian Peace Witness for Iraq worship service at Washington National Cathedral.