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Sal Khan expresses his amazement at how Khan Academy has evolved during a speech about online education and financial literacy at WACUBO14 in the J.W. Marriott on Monday, May 5, 2014.

L.E. Baskow

Sal Khan expresses his amazement at how Khan Academy has evolved during a speech about online education and financial literacy at WACUBO14 in the J.W. Marriott on Monday, May 5, 2014.