Given how the NSA is unable to keep top secret powerpoints secret, I'll wait for the leak of a cancer cure.
One thing that comes to mind is MMS (Miracle Mineral Solution) and Jim Humble's story behind it. I know the word "miracle" doesn't instil confidence, but the recipe is not a secret and its mechanizm has to do with getting oxygen to where it's needed the most in the body efficiently.
Below are a few videos I found on the topic for those interested:
"Jim Humble interviewed by Bill Ryan (Nov 2008) : A Project Camelot video"
http://www.youtube.com/watch?v=K0-VBLjdZRY"Jim Humble interviewed by Bill Ryan (Jan 2010) : a Project Avalon video"
http://www.youtube.com/watch?v=zPgRrlqsTII"Jim Humble [MMS] Miracle Mineral Supplement a Solution to cure H1N1 flu or cancer"
http://www.youtube.com/watch?v=i9lkhk4kguA