This sounds familiar. Presumption of guilt based on their heritage or nation or origin is discrimation.

Quoting Lieutenant General John L. DeWitt, head of the Western Defense Command (1943):

I don't want any of them [persons of Japanese ancestry] here. They are a dangerous element. There is no way to determine their loyalty... It makes no difference whether he is an American citizen, he is still a Japanese. American citizenship does not necessarily determine loyalty... But we must worry about the Japanese all the time until he is wiped off the map.