What steps did congress use to investigate the government armed forces unions education science newspapers and other aspects of American life?

Congress has utilized various methods to investigate different aspects of American life, including the armed forces, unions, education, and media. Key steps include holding congressional hearings, conducting investigations through committees, and gathering testimonies from experts and stakeholders. They also analyze reports and data from federal agencies and may issue subpoenas to compel testimony or documents. Additionally, Congress can commission studies and reports to inform their inquiries and legislation.