During World War II, the government limited citizens' rights through various measures:
1. Japanese Americans were sent to internment camps: Following the attack on Pearl Harbor, over 100,000 Japanese Americans, including children and the elderly, were forced into internment camps due to fears of espionage and sabotage.
2. Families with Italian relatives in Europe were forced to sign loyalty oaths: Italian Americans faced pressure to prove their loyalty by signing loyalty oaths, facing suspicion and discrimination based on their heritage.
3. The Supreme Court suspended habeas corpus: In the case of Ex parte Quirin, the Supreme Court upheld the government's power to detain individuals without trial, undermining the right of habeas corpus during wartime.
4. Domestic investigations revealed groups seeking to incite riots and spread anti-war propaganda: The government conducted investigations to identify and suppress groups perceived as threats to national security, which led to limitations on freedom of speech and assembly for certain individuals and organizations.