What Causes Mass Shootings? | The Daily Show

What Causes Mass Shootings? | The Daily Show

Mass shootings.Over the past few years,they have become as regular in Americaas Star Wars movies,and just like Star Wars movies,people have starting paying less and less attention.But this weekend, something happened.NEWSMAN: The nation mourns the victimsof two shooting massacres just 13 hours apart.The massacres in...