'It is this phenomenal game of hot potato': Marketers are poring over legal documents to make sure they don't screw up using data on Facebook

Facebook’s founder and CEO Mark Zuckerberg speaks at the Viva Tech start-up and technology summit in Paris, France, May 24, 2018. REUTERS/Charles Platiau Facebook is…

Read More 'It is this phenomenal game of hot potato': Marketers are poring over legal documents to make sure they don't screw up using data on Facebook