As someone whose life's work before his imprisonment was combing through documents of an often classified nature, he'd have been in a prime position to know. He'd have seen time and time again how a nation's citizenry are not under the slightest threat from the secret information in the documents that had been leaked to him from around the world, but that it could damage the reputation of a politician or a government or its military. As the persecution of the WikiLeaks founder continues to trudge on with the UK government's granting the Biden administration permission to appeal a declined extradition request, claiming that it can safely imprison Assange without subjecting him to the draconian aspects of America's prison system which caused the initial dismissal, it's good to keep in mind that this is being done entirely for the purpose of controlling public access to information that is inconvenient for the powerful.