Also see: https://www.vice.com/en/article/plutonium-in-the-hills-how-do-you-keep-nuclear-secrets-buried-forever-v22n11/ https://www.vice.com/en/article/plutoniu

Also see: https://www.vice.com/en/article/plutonium-in-the-hills-how-do-you-keep-nuclear-secrets-buried-forever-v22n11/ https://www.vice.com/en/article/plutonium-in-the-hills-how-d...