The Fight Over 3-D-Printed Guns

<p>Blueprints for making a variety of plastic guns, including AR-15-style rifles, on 3-D printers were scheduled to be posted online today. Who is the man behind their planned release, and why is the federal government taking his side? Guest: Tiffany Hsu, a business reporter for The New York Times. For more information on today’s episode, visit nytimes.com/thedaily.</p>