A nationwide investigation by China's food quality watchdog found products such as baby milk powder, rice, flour, meat, biscuits, seafood, soy sauce and sweets had been contaminated.

Wen has to do it , responding to growing international concerns. But it will work? Nobody can say that all products made in China are bad,or good. It depends on the boss of the manufacture since the bureaucrats are corrupt and neglectful. An ambitious boss will look forward to long-term achievements, while an opportunistic one will play with fire.

Furthermore, the profit system collapses in China as they are enjoying steep profit margins. A "race to the bottom" competition drives factories in China mad!