Juan Rico is not "Latino." By "Latin," I mean of South American or Central American origin.
Similarly, I will point out I said "black," not "African American."
My limiting of certain questions to pre-1970 was to make the point about being a social subversive -- especially in novels intended for children.
I have decided that I cannot put a body count on the war crimes, and will so modify the question. Also, since so many people seem distracted by this, I will give one hint. It is not from Starship Troopers and it is the utterly unambiguous murder of enemy combatants who had surrendered -- with no hesitation, compunction or guilt.