Answer:
If extraterrestrials eventually arrive at our doorstep, the question is: how should we respond? Clearly, interstellar affairs are not an imminent policy concern for any nation at this moment, so there is no international protocol issued by the United Nations for what to do. We should keep in mind that within a million years, humans might reside on the moon, Mars or free-floating space platforms, and each community might choose to respond differently. It is premature to contemplate a global policy long before it is required.
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