Snapchat co-founder Evan Spiegel responds to privacy, security concerns

Snapchat co-founder Evan Spiegel launched the platform in 2011 and has since grown the app to 191 million daily users globally. In an exclusive interview with Savannah Sellers, host of NBC’s “Stay Tuned” on Snapchat, Spiegel addressed a concern for parents: teenagers using the app for sexting.