I'm not as certain as you are, but I would grant that the usual procedure would be to write up a paper or two for publication...which is exactly what Dr. Michelakis has done. You can find some updates here:
News & Updates - DCA Research Information
If someone did a good enough job at covering something up, it would hardly appear as if something had been covered up...that's the point of covering something up, isn't it?
This misses the point again. In order for you position to have any force, you'd need to rule out the possibility that something could in fact be a cure for cancer but not be taken seriously for some reason. If you can't do that, the possibility should remain open.
Well, I wasn't actually thinking about drugs, exactly. But consider the principle behind vaccination: it was first discovered in Turkey in the mid 17th century or possibly much earlier. However, it wasn't appreciated for what it was until just over two centuries
exactly can you promise that?