Americans volunteer to work with a wide variety of nongovernmental organizations. Volunteers provide social services, work to clean the environment, and help to educate the young. But while many people view volunteerism as a "good" thing, they do not understand just how important volunteers are to the health of American democracy. Volunteerism both makes people better citizens, and helps restrain the growth of government in a way that protects the freedom of all.
What is one example of the type of volunteer work referred to in the statement above?