"An act very noble one. But, what many people do that they call 'trust' , is actually giving up on trying to understand others. And that has nothing to do with 'trust', but is rather apathy. Apathy is a far more devastating act than doubting others. The true evil is becoming apathetic about other people."
Doubt them. Question them, suspect them..and take a good, long look into their hearts. Humans are the kind of beings that can't put their pain into words, after all.