SAN FRANCISCO (March 1, 2016) Secretary of Defense Ash Carter addresses the California Commonwealth Club in San Francisco, March 1, 2016. Carter is in San Francisco to strengthen ties between the Department of Defense and the tech community. (DoD photo by Navy Petty Officer 1st Class Tim D. Godbee/Released)

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Keywords: ash, california, carter, club, commonwealth, defense, diux, dod, francisco, galvanize, pentagon, san, sd, secdef, secretary, sf