Of course parents, teachers, and school directors all want children to have safe environments in which to play. But is sterilizing playground dirt going too far? Our guests disagree. Tune in and decide for yourself where to draw the line.
- "Can Bacteria Make You Smarter?": http://www.sciencedaily.com/releases/2010/05/100524143416.htm
- "Can a Playground Be Too Safe?": http://www.nytimes.com/2011/07/19/science/19tierney.html