6/20: Dow drops amid concerns over China; three-year-old hears for the first time

      |The once-booming Chinese economy is beginning to slow down, and Wall Street is worried that the Chinese government is not acting fast enough to give it a boost; and, Three-year-old Grayson Clamp was born completely deaf, but he was able to hear his father's voice for the first time with the help of an auditory brainstem implant.

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