@CNN: A professor has stepped down as the head of a Duke University master’s program after warning Chinese students against speaking their native language “in a professional setting” https://t.co/YDrAFfAQJK

@CNN: A professor has stepped down as the head of a Duke University master’s program after warning Chinese students against speaking their native language “in a professional setting” https://t.co/YDrAFfAQJK