I certainly don't think we should sign a treaty, and then be the only one complying with it.
But, rest assured, Biden will rejoin. He likes treaties that drain the United States of resources and put us at a disadvantage. He thinks that is the friendly thing to do. We will now be doing that in economic treaties/agreements, foreign policy, climate policy, border security, etc. Non-citizens will again take precedence over US citizens. Oh well. It is what it is.
Link: https://www.state.gov/on-the-treaty-on-open-skies/
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