Tech Demo Defense Secretary Ash Carter listens to a technology demonstration at Galvanize San Francisco, March 1, 2016. Carter is on a trip to California and Washington state to discuss technology, cybersecurity initiatives and other topics with tech leaders. DoD photo by Navy Petty Officer 1st Class Tim D. Godbee SHARE IMAGE: Download Image: Full Size (0.85 MB) Tags: DIUx, ASH Carter, Defense Secretary , SecDef, California, San Francisco Photo By: MC1(SW/AW) Tim D. Godbee VIRIN: 160301-D-SK590-308A.JPG Photo Gallery