Turn autoplay off Turn autoplay on Please activate cookies in order to turn autoplay off Jump to content [s] Jump to comments [c] Jump to site navigation [0] Jump to search [4] Terms and conditions [8] UK US AU Your activity Email subscriptions Account details Linked services Sign out Profile Beta Beginning Sync AdSlot End AdSlot News US World Sports Comment Culture Business Money Environment Science Travel Tech Media Life & style Data News World news US military • Defense Department spent millions to research social networks • Studies focused on Occupy and Middle East protests • Projects also analysed memes, celebrities and disinformation Share Tweet this Email Ben Quinn and James Ball in London theguardian.com , Tuesday 8 Ju...