Here is John Eppolito's IB PowerPoint presentation filmed on 1/15/11. The beginning is similar to previous presentations but the end is different. To see the 25 minute presentation and 7 minutes of questions watch these three videos in order.

http://www.youtube.com/watch?v=X2MTpcSLgUs
http://www.youtube.com/watch?v=MhtOdeHBO2Q
http://www.youtube.com/watch?v=em9Ho_H_OtA