In this WhoWhatWhy Podcast, Jennifer Granick, the Director of Civil Liberties at the Stanford Center for Internet and Society, talks to Jeff Schechtman about the technology that tracks and stores emails and follows personal movement, about the amassing and mining of metadata, and how all this information is used and misused by the government.
https://whowhatwhy.org/2017/02/27/many-times-government-spied-today/