Greenpeace really isn't telling me anything I didn't already know...four years ago.
The aggressive environmental group released a report that says it found an extremely poisonous level of pesticides on common fruits and vegetables in China. This would be the reason why my mother-in-law insisted on thoroughly washing all our fruits and vegetables with purified water and baking soda. She certainly kept me healthy during my time in China (and very well fed).
The only surprising part of the report was that the pesticide levels were higher at major chains such as Wal-Mart and Vanguard than they were at local markets (where the prices are sometimes lower for the locals).