I agree with Jeffrey Kluger and also so many studies of human society came to the same point that human brain is like a tape recorder that gets and erases rumors, lies, and many words that passes through.
Our society is moving around from media and news that in order for them to bring something in our table they willing to get any type of news from any kind of sources which they would be true or false because this is how they make the money and this is how they would inform us.
So basically I come up to one point that believing is what you see and the facts that prove it would be the most believing and trusted truth