More tainted food from China

Here on the top of right column is a report about more tainted food from China. This time is tainted meat by purpose, not by accident.

a new chemical, phenylethanolamine A, has been added in some Chinese pig feed to boost up the look of the meat (so more money can be made). Such chemical can harm humans severely once the tainted meat is consumed.

Without looking into the psychology of adding such chemical to food for humans, we simply want to be informed if similar ingredients are in our food, especially in the packaged food. But where is the mechanism in the food manufacturing industry for us to learn where the ingredients are shipped from?

There is no law requiring it, so the food manufacturers would not do it.

I would love to hear from some of you for your suggestions.