What consumers should know about the Takata airbag recalls

Automakers have recalled more than 50 million vehicles in 2014. The latest wave impacts certain cars with defective airbags from the Japanese company Takata. The airbags, which can can rupture and blast metal debris, have been linked to at least four deaths. Judy Woodruff speaks with Micheline Maynard of Arizona State University for what consumers drivers should know.