If you've got 90 minutes to kill,

you might want to spend it watching a panel discussion on the deficit hosted by MIT.  The panelist are Peter Diamond of MIT, Jeffrey Liebman of the Harvard Kennedy School, Deborah Lucas of the MIT Sloan School of Management, Harvard economist Gregory Mankiw, and MIT's Robert Solow.  The panel is a little soft, in my view, but they're intellectually serious and honest.  In case you don't have 90 minutes, the accompanying article summarizes the proceedings.  Here it is.