Tommy Robinson Detention A National Security Issue? What About NDAA In US?

The USA is lagging behind the UK on suppression of free speech but on the same path. It begins with censorship of “hate speech”, then punishment for speech and finally secret courts & suspension of due process. In the UK, the compliant media was silenced by a “D-Notice”. What’s the “D” stand for? Is it a harbinger of where the DeepState is going in the US?