The debate over the torture memos brings up questions of who knew what (back then), and how much the public should know (now). Former Senator and Chair of the Intelligence Committee Bob Graham discusses what it means to “know” within Washington. Plus, recently-retired MTA chief Lee Sander; the current state of the home-buying dream for middle-income New Yorkers; and the May series on economic indicators continues. Digesting Politics is Back! Crowdsource Project: Help WNYC and ProPublica Track The Stimulus Money!