The Intimidation Factor: How a Surveillance State Can Affect What You Read in Professional Publications

attempting to obtain a copy of: "The Intimidation Factor: How a Surveillance State Can Affect What You Read in Professional Publications" https://www.computer.org/csdl/mags/co/2013/12/mco2013120091-abs.html i appear unable to download successful purchase, "There is no down-loadable article.". does anyone have details on the nature of the pressure to censor in this case? best regards,