Also what was the tone towards people of Japanese, German or Italian heritage at the time?
Last week /u/the_jewel_runner answered Why didn't German Americans get sent into internment camps like Japanese Americans during WWII?
/u/k1990 and /u/ParkSungJun have previously answered Why were Japanese Americans put into internment camps but Germans were not?
EDIT: This is a very popular question. Someone else could write a new answer.