Knowing a proposition appears to justify dismissing any evidence against that proposition as misleading. Yet a dismissal of evidence is dogmatic and belief against sufficiently strong evidence is never epistemically justified. It is argued in response that the problem can be resolved by applying an evidentialist view of the justification that is required for knowledge. Although knowledge includes evidence that helps justify judgments to the effect that contrary evidence is misleading, we do not thereby become justified in disregarding contrary evidence.
Keywords: James Cargile, defeaters, evidence, junk knowledge, modus ponens