Never knew that "wop" was an acronym for "without papers." Can understand why Italians are so upset. I have several Italian friends and one almost 100% Sicilian male friend. Beautiful people. Always admired Italian surnames with their lilting pronunciation. Love to watch Giada de Laurentis.
My dad was in Pacific theater in WWII and referred to Japanese as "Japs." I assume that is seen as derogatory but that is what he called them. My uncle served in European Theater and called Germans "Krauts."