 Between 1923 and 1929, the number of families with radios grew from 300,000 to 10 million, and Hoover's tenure as Secretary of Commerce heavily influenced radio use in the United States.In the early and mid-1920s, Hoover's radio conferences played a key role in the organization, development, and regulation of radio broadcasting.Hoover also helped pass the Radio Act of 1927, which allowed the government to intervene and abolish radio stations that were deemed "non-useful" to the public.