Gun laws in America have barely changed despite hundreds of mass shootings in America over the past decade. Yet when a gunman opened fire in a mosque in New Zealand, the country’s leaders banned assault rifles less than a week later. Shannon Watts, founder of Mom’s Demand Action, joins Nick to explain why America is so obsessed with guns and violence, why the NRA is so vulnerable right now, and how a grassroots movement is trying to change how easy it is to get an assault rifle in the United States.