US urged to intensify drug fight

China expands its list of controlled substances used to make narcotics

The United States should take measures to reduce its demand for drugs and intensify its law enforcement, rather than simply claim that China is the major source of the chemicals, a senior Chinese drug control official said on Thursday.

"The biggest difficulty China faces in opioid control is that such drugs are in enormous demand in the US," Yu Haibin, a narcotics control official with the Ministry of Public Security, said at a news conference in Beijing.