Student Maximilian Steubl of Churchill High School in Potomac, Maryland, participates in a gun control rally at the West Front of the U.S. Capitol March 14, 2019 on Capitol Hill in Washington, DC. Students from area high schools participated in the event to mark the one-year anniversary of a nationwide gun-violence walkout protest that was prompted by the shooting at Marjory Stoneman Douglas High School in Parkland, Florida.
Why passing gun control legislation is so hard
05:45 - Source: CNN
CNN  — 

Determining how to prevent mass shootings in the United States has been a complicated debate, but there’s new evidence that one intervention could play a role in reducing the violence: “red flag” orders.