CBS 5's Sue Kwon Conducts Tuna Mercury Test
- 00:05:38
- CBS San Francisco
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CBS 5's Sue Kwon Conducts Tuna Mercury Test
CBS 5's Sue Kwon ate 20 cans of tuna over the stretch of 20 days, to see if she if there are harmful levels of mercury. The results were surprising.
CBS San Francisco | March 6, 2009
