In 2012, CNN’s Dr. Sanjay Gupta, on assignment for 60 Minutes, profiled Sal Khan and his website “Khan Academy,” which he hoped would transform education. At the time the digital lessons reached more than four million students each month.

In 2012, CNN’s Dr. Sanjay Gupta, on assignment for 60 Minutes, profiled Sal Khan and his website “Khan Academy,” which he hoped would transform education. At the time the digital lessons reached more than four million students each month.
Washington — A branch of the National Archives released a mostly unredacted version of Democratic …