You’ve read all of your free items this month. To register, get added benefits and unlimited access to articles, Become a Member. Already a Member? Sign in. Advertising Age Article Abstract Amid Prism Denials, Online Ad Companies Face Trust Gap Government, Online Companies at Odds Over Scope of Spy Program By Ad Age Staff, Published on June 07, 2013 0 Want more Access, Content & Connections? Upgrade to Membership. We are glad you are enjoying Advertising Age. To get uninterrupted access and additional benefits, become a member today. Become a Member Already a member? Log in.