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Zack Lamb has one of the most severe cases of Tourette Syndrome in the US... Dateline returns to see if drastic surgery on his brain has worked.
Dateline reporters scour the globe to bring you a world of daring stories. Our reputation is for fearless and provocative reporting. Australia's beloved, award winning and longest running international current affairs program.
For more on Aaron Lewis' story, go to the SBS Dateline website... http://bit.ly/1rsyOsy