I work with a guy from China who grew up on a farm. He says that the Chinese routinely use mass quantities of DDT and other poisons on their crops, so much so, that all the birds and wildlife in his region died. He said there many pets died, and many people had health problems because of the poison runoff. It’s no wonder that food crops from China are contaminated!
I understand Chinese farmers use human waste as fertilizer. BTW, so do Mexican farmers. Sorry to you NAFTA fans, but lettuce from Sonora is not as safe as that from California or Arizona.
But there are some freepers who have said that the U.S. banning DDT was a bad thing. You mean it's not. /sarc