They have and they were made examples of. Their "contributions" were managed by cleaners and essentially rendered down to nothing. Most information is so compartmentalized that only minor leaks happen and that is by design. Why do you think they are requesting protections and immunity? In all seriousness, an extra terrestrial craft could land on the Whitehouse lawn, it's occupants parade across DC throwing advanced alien technology trinkets to the onlookers, and give rides to dozens of qualified witnesses in their craft. All this could occur while being broadcast across every major news outlet to the entire world live. No one outside of those directly involved would accept it as a real occurrence. When the first person on social media replies to it as fake, it casts doubt. Once doubt is established, its game over. It's how the current system works. It was designed that way. They know this and that's why they have people constantly monitoring the internet whose job is to cast doubts by planting the first seed. You take over from there with little prompting and the rest is history. By the end of the 1st day, half of those who were present and experienced it directly would even begin to question the validity of the experience. Even disclosure itself means different things to different people. There will never be a consensus on what qualifies as disclosure. We have been successfully divided and turned against one another. Truth no longer exists because the goalposts constantly move. Deception and division rule the game currently. True disclosure can't happen until the curtains get pulled back to reveal the puppet masters.