Many other works by muckrakers brought to light a variety of issues in America during the Progressive era. These writers focused on a wide range of issues including the monopoly of Standard Oil; cattle processing and meat packing; patent medicines; child labor; and wages, labor, and working conditions in industry and agriculture. In a number of instances, the revelations of muckraking journalists led to public outcry, governmental and legal investigations, and, in some cases, legislation was enacted to address the issues the writers' identified, such as harmful social conditions; pollution; food and product safety standards; sexual harassment; unfair labor practices; fraud; and other matters. The work of the muckrakers in the early years, and those today, span a wide array of legal, social, ethical and public policy concerns.