Summary: Marseille France has the world's largest proportion of Muslims and Jews residing in a single urban area. They have co-existed for generations and share many things in common -- a North African heritage, similar food and even languages... but a few shocking acts of violence have both communities alarmed. Our report comes from the streets and mosques of this ancient city. We also visit one of the world's cleanest physics lab -- set up to study the behaviour of sub-atomic particles more than 2 kilometres below Sudbury Ontario. It sits at the bottom of a mine to prevent interference from the bath of radiation which rains down on earth from space constantly.
