Having secrets is part of being human. There is no person alive today who doesn’t have at least one secret. While most of these secrets are of no concern to anyone else, there are some that could benefit the whole of humanity, or even solve some long-running mystery. While some of these may one day surface, others will forever be lost. Here are 10 people who took their biggest secrets with them to the grave, and left us to speculate about what those secrets truly were and how they could have…
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