TechCrunch Chat Defense Secretary Ash Carter speaks to TechCrunch Senior Editor Matt Burns during the TechCrunch Disrupt innovation and technology conference in San Francisco, Sept. 13, 2016. DoD photo by Army Sgt. Amber I. Smith SHARE: Download: Full Size (0.85 MB) Tags: science, technology, SecDef, ASH Carter, Travels Credit: Sgt. Amber I. Smith VIRIN: 160913-D-SV709-077C.JPG Photo Gallery