A great segment on a great man with a great mission. As an educator, I fully affirm what Khan is doing. Active learning far exceeds passive learning. Students need to get information out of class, then come to class to master it — and master it at their own pace, with facilitators assisting them in the process, providing one-on-one interaction, to the extent possible, on the exact issues which those students are failing (after their own efforts) to fully grasp. And I love that he makes it free.