person born in the US of parents who emigrated from Japan
American-born children of Japanese immigrants; second generation Japanese Americans.
an American citizen of Japanese ancestry
a son or daughter of Japanese immigrants who is born and educated in America
Second generation, children of the Issei, born in the country of settlement.
Nisei (二世 lit. second generation) is a term used in countries in North and South America to specify the son or daughter (born outside Japan) of an Issei (一世) couple. The term nisei Japanese American refers specifically to nisei living in the United States.
"Nisei" is the ninth episode of the third season of The X-Files. A mail order videotape of an alien autopsy blossoms into a much more complicated investigation when Mulder and Scully find the distributor of the tape murdered in his own home apparently by a high-ranking Japanese diplomat. While Mulder's search for the video leads him to a train car, Scully investigates a Mutual UFO Network group and discovers several women who claim to know her.