We have been here, and behaved fecklessly, ignobly and dishonorably, before:

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Here is the letter that the soon-to-be-shot-in-the-stomach former prime minister of Cambodia sent to Henry Kissinger:

Dear Excellency and Friend:

I thank you very sincerely for your letter and for your offer to transport me towards freedom. I cannot, alas, leave in such a cowardly fashion. As for you, and in particular for your great country, I never believed for a moment that you would have this sentiment of abandoning a people which has chosen liberty. You have refused us your protection, and we can do nothing about it.

You leave, and my wish is that you and your country will find happiness under this sky. But, mark it well, that if I shall die here on the spot and in my country that I love, it is no matter, because we are all born and must die. I have only committed this mistake of believing in you [the Americans].

Please accept, Excellency and dear friend, my faithful and friendly sentiments.