Hear an inspiring 9 /12 minute clip of Dr. Erwin Lutzer open air preaching to a group of atheists. Despite the interruptions and being heckled, Dr. Lutzer keeps pressing on with defending the evidence for the resurrection of Jesus Christ. At the conclusion of the audio, Dr. Lutzer himself joins us to discuss his yearly open air preaching in Chicago and Dr. Lutzer answers the questions of callers.