Political scientist Gwendolyn Mink is the author of "The Wages of Motherhood: Inequality in the Welfare State, 1917-1942" and "Welfare's End", and the editor of "Whose Welfare?". She is also the co-editor of "The Reader's Companion to U.S. Women s History" and of the forthcoming "Encyclopedia of Poverty and Social Welfare in the U.S."