An important issue of censorship raised in my Netflix docuseries Ancient Apocalypse was the fact that I and my film crew from ITN Productions were banned from filming at Serpent Mound in Ohio. In episode 6 of the series, in front of the closed gates of Serpent Mound, I read out the email banning us. Our work at the site was therefore limited to what we could achieve with drones and archive footage. Many are amazed that such a restriction on freedom of expression in a series that would reach many millions of viewers could have happened in the United States, and some doubt that it did happen, so I reproduce here the official email from the Public Relations Coordinator of the Ohio History Connection denying us filming permission. Note in the last two lines that the denial had nothing to do with protecting the physical integrity or sacred nature of the site but was made solely on the grounds that my views about the remote past of Serpent Mound do not align with those of mainstream archaeology. For the record, as anyone who reads my 2019 book “America Before: The Key to Earth’s Lost Civilization” will quickly realise, I attribute the creation of Serpent Mound entirely to Native Americans. Where I differ from the archaeologists at the Ohio History Connection is in the evidence I present that the origins of the site may go back to around 12,800 years ago rather than to the much more recent dates favoured by the OHC.