The UK has operated a system for enforcing censorship for a long time. Formerly known as the D-Notice, later DA-Notice and now DSMA-Notice (Defence and Security

The UK has operated a system for enforcing censorship for a long time. Formerly known as the D-Notice, later DA-Notice and now DSMA-Notice (Defence and Security Media Advisory Notice) [1]. The Defence and Security Media Advisory (DSMA) Committee responsible for the system has a website explaining its operations and history [2] [1] https://en.wikipedia.org/wiki/DSMA-Notice https://en.wikipedia.org/wiki/DSMA-Notice [2] https://www.dsma.uk/ https://www.dsma.uk/