Quote Originally Posted by Liz Gannes
Most notably, the Facebook-Politico data set will include Facebook users’ private status messages and comments. While that may alarm some people, Facebook and Politico say the entire process is automated and no Facebook employees read the posts.

Rather, every post and comment — both public and private — by a U.S. user that mentions a presidential candidate’s name will be fed through a sentiment analysis tool that spits out anonymized measures of the general U.S. Facebook population.

This is similar to the way Google offers reports on search trends based on its users’ aggregate search activities.

Please see the disclosure about Facebook in my ethics statement.