Racism has manifested itself in a variety of ways, including genocide, slavery, segregation, Native American reservations, Native American boarding schools, immigration and naturalization laws, and internment camps. Formal racial discrimination was largely banned by the mid-20th century and over time, coming to be perceived as being socially and morally unacceptable. Racial politics remains a major phenomenon, and racism continues to be reflected in socioeconomic inequality. In recent years research has uncovered extensive evidence of racial discrimination in various sectors of modern U.S. society, including the criminal justice system, business, the economy, housing, health care, the media, and politics. In the view of the United Nations and the U.S. Human Rights Network, "discrimination in the United States permeates all aspects of life and extends to all communities of color."