Some people, unfortunately, don't believe in the authority or validity of international criminal law or such treatises as the Universal Declaration. Especially if they were conceived of outside the jurisdiction of the US - meaning that acknowledging them (however reluctantly) the US would have to *gasp* adhere to international standards other than self-imposed ones (not that there are many of those, these days).

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We've got rules and maps and guns in our backs, but we still can't just behave ourselves. Even if to save our own lives, we are a brutal kind. The Shins