Brian Nam-Sonenstein, co-host of the "Beyond Prisons" podcast and publishing editor of Shadowproof, appears on "Unauthorized Disclosure" to help the show outline the issue of censorship in United States prisons and jails. 

He describes why free speech advocates should absolutely care and how censorship has intensified as facilities move away from physical mail.  

Censorship is not limited to banning books. Nor is it only retaliation against an incarcerated individual who wants to write a letter for publication. 

At the end of the show, Kevin highlights declassified files that show how a propaganda department of the British Foreign Office targeted Kwame Ture, who was a Black liberation leader, with a disinformation campaign.