This is the epistemological crisis we're living through today. Epistemology is the process by which we know things. The whole point of a transparent, democratically accountable process for expert technical deliberation is to resolve the epistemological challenge of making good choices about all of these life-or-death questions. Even the smartest person among us can't learn to evaluate all those questions, but we can all look at the process by which these questions are answered and draw conclusions about its soundness.