NPR, All Things Considered, June 23, 2009 by Ari Shapiro
http://www.npr.org/templates/story/story.php?storyId=105439966
“In the public debate, it has been a great challenge for the liberal and progressive side to capture this notion in a bumper sticker,” says Goodwin Liu, editor of the new book Keeping Faith with the Constitution. Liu teaches law at the University of California, Berkeley, and he chairs the board of the American Constitution Society, a progressive legal group.