2013 Google Developer Conference Continues In San Francisco

SAN FRANCISCO, CA - MAY 17: Google engineers do demonstrations of Google Glass during the Google I/O developer conference on May 17, 2013 in San Francisco, California. Eight members of the Congressional Bi-Partisan Privacy Caucus sent a letter to Google co-founder and CEO Larry Page seeking answers to privacy questions and concerns surrounding Google's photo and video-equipped glasses called "Google Glass". The panel wants to know if the high tech eyeware could infringe on the privacy of Americans. Google has been asked to respond to a series of questions by June 14. (Photo by Justin Sullivan/Getty Images)