Just saw the movie, too. And yes, that is a very powerful moment. Interesting how almost the same words were later said by an American mother. My heart is aching right now for all the mothers, American and Iraqi, who have lost children due to this unjust war.
Patio, I had a similar thought somewhere in the middle of the movie to what you said - this movie is for everyone who loves America.
And Talesin, yes, you will cry.