the ones about vaping, when tobacco money paid for the studies it was weird how they always found a lot of danger that people then had to be protected from ... but when you would look at the data you would see they were using it in a way that noone actually used it (like using bad coils and completely overheating them) etc. Really a pure scam but because it's done in the form of 'science' its supposed to be more credible than people's experiences ...