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Collection of Second Thought's most popular videos, including "What if NASA had the US Military's Budget?", "How Many Nukes Would it Take to Eradicate Humanity?", "How Could We Survive a Zombie Apocalypse?", and more! Watch the best of the best...and then the rest :)
As much as the US would love to be the only country on earth, it's required to interact with other nations. Here's how that looks.