** FILE ** New York Mayor Michael Bloomberg speaks at a news conference in San Francisco, Friday, June 14, 2013. Mayor Bloomberg and San Francisco Mayor Ed Lee announced they are sponsoring a pair of technology summits to be held in each of their cities in the next year. (Associated Press)

Photo by: Jeff Chiu

** FILE ** New York Mayor Michael Bloomberg speaks at a news conference in San Francisco, Friday, June 14, 2013. Mayor Bloomberg and San Francisco Mayor Ed Lee announced they are sponsoring a pair of technology summits to be held in each of their cities in the next year. (Associated Press)