Doctors have decades of experience fighting “fake news.” Here’s how they win

This article is about rhetoric, I think. I believe the article's main bullet points apply to religious proselytizing too:

* Take time to explain why you believe something — not just what you believe and why your opponent is wrong ("because in his presence i feel the divine", "because scripture tells me so", "because the evidence of her miracles is so solid")

* Make sure your information is reliable and easy to access (give them a free pamphlet/booklet/DVD/copy of your guru's teachings/Holy Bible/etc.)

* Teach them while they’re young (free Sunday School, trip to the holy land, lunch, medical care, balloons, severe beatings, etc)

* Evidence is necessary but not sufficient ("it also takes faith...")

So often you see people who are for vaccines (which I am for, massively) and for GMOs (which I'm only conditionally for) arguing SCIENCE SCIENCE SCIENCE without actually making an argument. Science can't prove any vaccines or GMO are safe in general, any more than pharmaceuticals or processed foods in general could be proven safe. The FDA and CDC carefully monitor vaccines. Processed foods and GMOs less so or not at all. Merely invoking SCIENCE doesn't let anybody off the hook.