- The New York Times
December 29, 2008
- Newsweek
October 25, 2008
- The New York Times
October 7, 2008
- The Washington Post
March 2, 2008
- Science and Spirit
January 2008
Press: Read
- The New York Times
December 29, 2008
- Newsweek
October 25, 2008
- The New York Times
October 7, 2008
- The Washington Post
March 2, 2008
- Science and Spirit
January 2008