There was a certain amount of prejudice when U.S. citizens of Japanese descent were put in camps after Pearl Harbor. However, this great country had just been attacked by a foreign power (Japan) and thousands of Americans killed, with more thousands yet to be killed. A president like Roosevelt would have had to be insane to ignore the immediate and possible threat of Japanese Americans after Pearl Harbor. It was a very bad time in the U.S., and the decision to intern Japanese was wrong but at the time, it made sense. Wars cause bad decisions. Roosevelt would have been a fool after Pearl Harbor to say the internment was "racist". And, at least, this country finally did apologize. Yes, there was "war hysteria after Pearl Harbor.