I need help myself lol XD
Answer: There was fear and prejudice towards the Germans and Communist and that expanded to include all immigrants. They signed the Emergency Quota Act, which limited immigration: only allowing a certain percentage of ethnic groups into the united states.
If the citizens were not required, no one may want to. On jury, you may have a case that may take a long time and you may end up sentencing someone to death. It is likely if citizens were not required that no one would want to volunteer.
