Paris Unity Rally: More Than Just Symbolism?

In an unprecedented display of international solidarity, a crowd estimated to be around a million strong marched against terror in Paris on Sunday, led by 40 world leaders. For several hours, extraordinary scenes played out on the streets of Paris days after the Charlie Hebdo shooting that left 12 people dead and another 4 at a shooting in a kosher supermarket. We ask tonight: amid disturbing reports of an anti-Muslim backlash in France following the terror attacks, can this unity rally be more than just symbolic?