The World This Year: Paris attacks, from Charlie Hebdo to Bataclan (part 1)

In 2015, Paris was targeted not once, but twice. First in January at satirical weekly Charlie Hebdo and a kosher supermarket, then on November 13 in a series of attacks with the worst carnage at the Bataclan concert hall. Our panel of guests looks back at the impact of the Paris attacks and how they have changed the world.