this place. there is no disputing these traditions were very, very strong. we have literarily traditions and archaeology evidence and graffitis and material culture. we have a lot of circumstantial evidence but we don't have anything that ties us back to the exact time and place we need to say definitively that peter was here in this place. >> it's controversial, but could science now provide that missing evidence? professor tom and dr. george kazan from oxford university, they aren't allowed access to the bones found beneath the vatican so they tracked down two teeth believed to come from peter to a basilica in belgium. dr. kazan thinks they were brought here from rome in the seventh century. >> look, there are the teeth there, look. just there. two of them. >> so there is a latin