Just three hours from Paris, the port town of Calais has become a symbol of Europe's worsening migrant crisis. "The Jungle", a series of shanty towns full of desperate migrants seeking a better life in Britain, continues to grow. Eurotunnel says it's blocked more than 37,000 attempts by migrants to cross the Channel since January. As European leaders debate what to do, the numbers of those dying to reach their notion of El Dorado continue to rise. What can be done to stem the tide?