NBC Olympics President Gary Zenkel talks with Recode's Ina Fried about how the network is building on the digital reach of the Summer Games via livestreaming, virtual reality, Snapchat and more. Zenkel says NBC and Samsung expect to produce two to three hours of virtual reality content per day throughout the Games. He also addresses concerns about the Zika virus and politics in Rio de Janeiro, but says he's not worried about their effect on the Olympics.