Philosopher Barbara Forrest of Southeast Louisiana University was a key witness in the 2005 trial of Kitzmiller v. Dover, the latest battle over the teaching of evolution in public schools. In this podcast, she explains that people who claim evolution is "only a theory" are misusing the word "theory". Produced by Susan Lewis and David Levin. Interview by Gary Glassman. "Judgment Day: Intelligent Design on Trial" is produced by NOVA and Vulcan Productions, Inc. in association with The Big Table Film Company. Funding for NOVA is provided by ExxonMobil, Pacific Life, David H. Koch, the Howard Hughes Medical Institute, the Corporation for Public Broadcasting, and public television viewers. For more on the nature of science and the latest battle over the teaching of evolution, visit us online at pbs.org/nova/id