US, mass shootings and the Second Amendment: why is it so hard to make gun laws stricter in America?

  The latest fatal shooting at an elementary school in Nashville, Tennessee, which killed six people, has renewed calls for a crackdown on gun ownership in the US and the reform of the country's gun laws. Host Andy Bell talks to Saul Cornell, Professor of constitutional history at Fordham University in New York and gun control advocate, to find out how American gun regulations work, what the Second Amendment has got to do with them, and why attempts to restrict them have failed so far. How Did We Get Here? Explaining the News is a podcast from Channel 5 News. Join Andy Bell as he explains the world's biggest news stories through interviews with politicians, experts, and analysts. Produced by Silvia Maresca.