Responding to a lawsuit filed by the National Fair Housing Alliance and others that alleged discrimination against families with children, women, persons with disabilities, and on the basis of national origin, Facebook announced changes in its policies to avoid engaging in discriminatory advertisements. Brakkton Booker, After Lawsuits, Facebook Announces Changes to Alleged Discriminatory Ad Targeting, Mar. 19, 2019. See also Tracy Jan & Elizabeth Dwoskin, HUD is reviewing Twitter's and Google's ad practices as part of housing discrimination probe, Wash. Post, Mar. 28, 2019.