The Megiddo Mosaic, discovered in an Israeli prison, is the oldest known Christian church floor, dating back 1,800 years. Built during a time of persecution, it boldly proclaims "Jesus is Lord" instead of "Caesar is Lord." In Washington, D.C., Logan spoke with Dr. Bobby Duke from the Museum of the Bible about its history, the logistics of its transport, and its significance as the most important Christian discovery since the Dead Sea Scrolls.