Idk about all that. There's been some chicanery in the government and big corporations.
Like when I saw on the news (in around 2006) that this Asian doctor in the UK had found a cure for 6 types of cancer.
It was on the news that night, and I never heard anything more about it. Have you?
I haven't heard of that Asian doctor, but there was a doctor in the U.S. named Dr. Gerson that I believe found a way to cure cancer and many other diseases with diet alone. A director who's done work for national geographic decided to do a documentary on his work. It can be seen here:
Dying to have known | mindbodyheartandsoul.org