From a Washington Post article:
Dennis Shea, the U.S. ambassador to the WTO, said the body was incapable of policing China’s behavior.
Many of the Chinese policies that the United States objects to — such as subsidies that promote excess capacity in steel and aluminum production — are not prohibited by WTO rules, Shea acknowledged.
and how long has it taken our politicians to figure this out and how much damage has been done to our economy during that period?