And not to acknowledge the loss and the necessity for war, not to take part in the orgy of flag-waving and singing of "God Bless the USA" (featured by NPR as an "American Icon") was to proclaim oneself officially Un-American.

It is probably not the worst thing about nationalism, because I think the worst thing about nationalism is how it kills people, but the part where it polarizes the public expression of just living in a country is not good.