The shock waves from such an event like that would have such an impact, it would leave the naive and gullible in a perpetual state of cognitive dissonance denial, which is about 80%+ of the population, we could never recover from that. They are to damaged in the frontal lobe, neuron receptors and dopamine balances are permanently gone, I could keep going on about the causes and effects, but the reality of it is that I hate to say it, if truth was revealed, it would make things far worse, to the point where we could never recover, ever.