We need more journalistic reporting like "Spotlight," Tom McCarthy’s excellent film about the Boston Globe’s groundbreaking 2002 coverage of systemic clergy sex abuse and cover-ups within the Catholic Church. We need it because humans are very prone to doing bad things and really, really good at covering up those bad things. Someone needs to shine the spotlight on darkness, even if it means implicating ourselves too.
In the end, very little knowledge in this world is ironclad. Very little is absolutely proved or exhaustively understood. Vast mystery inheres in every moment of our lives, in all the minutia. But that doesn't debilitate us; we have faith in the functioning of the world. Faith is inescapable, even if we don't often recognize it as such.