How did President Truman guard against communist spies in America? (1 point) Responses He set immigration quotas on all people from Eastern Europe. He set immigration quotas on all people from Eastern Europe. He made all communist-related activities illegal in the United States. He made all communist-related activities illegal in the United States. He ordered the investigation of government workers to determine their loyalty. He ordered the investigation of government workers to determine their loyalty. He set up a committee led by Joseph McCarthy to investigate communist activities on American soil
