The Jihadist threat in France: Police have foiled many attacks, but some make it through

On November 13, 2015, coordinated terrorist attacks turned Paris into a theater of blood and calamity, with gunfire on café terraces, explosions by a stadium and a nighttime massacre at the Bataclan concert hall, leaving 132 people dead and at least 350 injured. This marked Paris's second major terrorist attack in the span of a year. Why did French intelligence services fail to anticipate it? Details by Matthew Dalton, Paris correspondent for the Wall Street Journal and Philip Turle, FRANCE 24 International Affairs Editor.