They Must Have a Good Reason
There is a strange idea hovering about that if you don’t know something then it doesn’t exist. Kind of like the image of the proverbial ostrich with his head in the sand. But it goes beyond denial. Ignorance is when you don’t know something at all, denial is when you know it, but you ignore it.
What I am talking about here is when you know something and do not deny it, but simply rationalize it away with a statement like “they must have a good reason for doing that,” or similarly, “maybe we don’t know all that there is to know about that.” Which is often followed with, “and I don’t have the time, (inclination, care, interest, curiosity, ability, intelligence, etc.) to look into it further.”