All Flesh is Grass - Clifford D. Simak

Thrown into this sort of situation, it was only natural that the people of the village should be avid to grasp at any sort of interpretation that might clear their names and set them right, not only with themselves, but with the aliens and the world; that they should be willing to believe anything at all (the worst or best), to embrace all rumours, to wallow in outlandish speculation, to attempt to paint the entire picture in contrasting black and white (even when they knew that all of it was grey), because in this direction of blackness and of whiteness lay the desired simplicity that served an easier understanding and a comfortable acceptance.