The New Yorker presents a special conversation from Slate\u2019s \u201cAmicus\u201d podcast, hosted by Dahlia Lithwick. Lithwick talks with Judge Margaret M. McKeown, of the United States Court of Appeals for the Ninth Circuit, about McKeown\u2019s new book, \u201cCitizen Justice: The Environmental Legacy of William O. Douglas\u2015Public Advocate and Conservation Champion.\u201d The Washington Roundtable will return next week.