In the immediate aftermath of the Parkland shooting, much of the debate and discussion focused on guns. Student activists said #Neveragain and rose up at Marjory Stoneman Douglas High School and across the nation to descend on Washington for a generational march, demanding gun control.

While those efforts grabbed headlines, much work was done behind the scenes in Florida and across the country to try and change laws and beliefs surrounding guns and gun safety.

This episode explores the question — what's changed with guns since Parkland? 

Additional courtesies: CBS This Morning, CBS Denver, CNN