History of Exclusions

In class we often address how the US government has never apologized for their dropping of the bombs on Hiroshima and Nagazaki and I recently read a quote that helped shed some light on this subject for me. I read an article Anne Cheng about Melancholia and her position on its relation to America's "history of misremembering those denials ... a history of exclusions, imperialism, and colonization." And she goes on to say that the cultural memory of America is always faced with the issue of "how to remember those transgressions without impeding the ethos of progress? How to bury the remnants f denigration and and disgust created in the name of progress and the formation of an 'American identity'?" I found this quote spoke to the reason as to why no form of US government has reached out an apology because at this point we have come too far in etching out a vision of a just and Democratic America, admitting any guilt will only tarnish it, so we continue to ignore, and teach our children that the things we did in the past was all  in the pursuit of a greater future for all. I'm not saying that all of the US atrocities have been unjustified but they should at least be honest about the ones that were and I think thats what this article is getting at.I hope this shed some light on things for people.