Canadian film on the theft of Einstein's brain among Hot Doc world premieres

FILE - This June, 1954, file photo shows renowned physicist Albert Einstein in Princeton, N.J. (AP Photo, File) FILE - This June, 1954, file photo shows renowned physicist Albert Einstein in Princeton, N.J. (AP Photo, File)

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Biden trips after speech addressing U.S. Air Force Academy graduates

President Joe Biden on Thursday thanked U.S. Air Force Academy graduates for choosing “service over self” but said they now have the “great privilege” of leading in a world that will only get more confusing in the years to come. His appearance was punctuated by a stumble onstage after handing out diplomas to graduates.