What does "conspiracy" mean to you, exactly? If the biomedical research community covered up an idea they thought might be true in order to support a political strategy, I'd consider that almost the canonical example of a conspiracy. Maybe it was a good political strategy, maybe it was serving an important goal - the bottom line would still be that you can't trust what they say because they might have secretly decided that it's best to deceive you.

Ah so lets suppress the truth when it's convenient and bring it back out when it's politically advantageous for your party. That doesn't seem dangerous to you? It's quite literally propaganda and the stuff that tin foil hat loonies have been warning about for years... If that's where we are at politically I guess they weren't so crazy after all.