Dailykos, always a font of info, gave us this:

Doesn’t it remind you of this?

The first image is a Nazi propaganda poster, the second, a current poster for the MARC rail system in Maryland.

In the MARC poster, the first two faces you see are white. Finally, there’s a black man in the back. With the races properly aligned, the poster can go forward with its central message: We’re under Threat! A black man could not have served as the poster’s primary human face, as whites feel threatened by black males, and the two threats would have looked confusing, even suggestive. Many scholars have written on the racism of WWII posters, and here we are 60 years later, still talking in the same racist idiom.

And of course, there’s not an Asian face in sight…