Videogames and virtual simulations are everywhere in the U.S.
military. They are used for training, learning new skills,
preparing troops for war, and many other functions. Now there is an
emerging application for virtual simulations as therapy tools to
help troops overcome post-traumatic stress disorder. In this
podcast you will hear about this new technique. We also discuss the
controversial issue of whether the Pentagon is getting its money's
worth for its simulators. We also bring you a truly eye-opening
story about how British researchers are studying facial expressions
to help authorities catch smugglers as they cross the border.