Martin Sorell rightly calls Google, Twitter, facebook et al "media companies masquerading as technology companies", and believes that The Guardian’s revelation about the National Security Agency PRISM program will directly affect consumer behavior. Not just the old farts who have been online since 1990s, but also for the snapchatting kids who have grown up online and have a very different attitude toward privacy. This will change. (Finally!)
Speaking to Brandrepublic in Cannes Sorell says "Prism will alter attitudes towards data".