Rhode Island is the latest US state to discuss mandatory censorship of web content [eff.org], at first targeting pornography:
Rhode Island Democratic state Senators Frank Ciccone (@senatorciccone) and Hanna Gallo (@hannagallo27) have proposed grandstanding, unworkable legislation, "Relating to Public Utilities and Carriers—Internet Digital Blocking" which would mandate the state's ISPs to identify all the pornography on the [I]nternet, and then block it for all Rhode Islanders, unless those Rhode Islanders specifically requested their porn to be unblocked and paid $20 for the privilege.
These proposals fly in the face of the observation that automated pornography filters don't work [theguardian.com] and that even the manual ones are neither practical, reliable, nor scalable.
Source : Rhode Island proposes blocking all online porn and charging $20 to unblock it [boingboing.net]. Boing Boing.