Race, nationality, and ethnicity are sometimes correlated, but they are not synonyms. A racial group as the term is generally used in the United States today is a group having a common ancestry and distinct physical traits. The largest groups are whites, blacks, and East Asians. Iran is a country, not a race, and an "Iranian" is simply a native of Iran. Iranians and other Central Asians are generally regarded as "white," whatever their actual skin color; many Indians, for example, are dark. Some Central Asians are indistinguishable in appearance from Europeans, or from Americans whose ancestors came from Europe, while others (besides Indians), for example Saudi Arabians, would rarely be mistaken for Europeans. Some Iranians, especially if they speak English with an Iranian accent, might, though not dark-skinned, strike some Americans as sufficiently different looking and sounding from the average American of European ancestry to provoke the kind of hostility associated with racism. Yet hostility to an Iranian might instead be based on the fact that Iran is regarded as an enemy of the United States, though most immigrants to the United States from Iran are not friends of the current regime.
Because of the intrinsic similarities between these three concepts, the plaintiff was not precluded from suing her employer for "race" discrimination, even though in her administrative charge she had only checked the boxes for "national origin" and "religion".
[Hat tip: Workplace Prof Blog]