The correct answer is industrialization.
During the early 20th century, industrialization was growing rapidly in America. This meant more factories, consumer goods, and workers needed to produce goods.
Due to industrialization, many American citizens worked in factories for long hours and under unsafe working conditions. American citizens during this time work as many as 60 hours per week and worked 6 days a week. This result of industrialization caught the attention of the Progressive party members, as they wanted to make working conditions better for the average American citizen.
A suppression of speech by the government
Citizen Genêt Affair, incident precipitated by the military adventurism of Citizen Edmond-Charles Genêt, a minister to the United States dispatched by the revolutionary Girondist regime of the new French Republic, which at the time was at war with Great Britain and Spain.
Orson Welles was a famous actor, director, and producer in film, television, and radio in the early half of the 20th century. In 1938, he did a special Halloween broadcast of H.G. Welles famous science fiction novel 'War of the Worlds' which depicted a Mars invasion of Earth. The one hour drama started with news reports of certain activity on Mars, followed by news reports of Martian invasion of Earth that sounded so authentic and professional, that it caused mass hysteria amongst those listening to the broadcast.
