> And this is hard to know what is scaremongering, and what is really dangerous.

Indeed. Also there are increasing evidence that many scientific studies aren't reproducable.

We need a better System to identify 'useful signals' among noises. But in our current socio-economic structure, this topic never comes up as the most important issue. Abraham Lincoln founded National Science Foundation that laid out a solid ground work for this movement, but nobody(correct me if I am wrong) picked it up where he left of and pushed Scientific inquiry as one of our top agenda.