Confused by Research?

BPA’s Bad for Humans, but Why Is U.S. Studying Chinese Workers’ Exposure? | MyFDL

I’m a little skeptical about three concurrent five-year studies with groups ranging from 417 to 634 in number; it seems like a lot being done by the same folks at the same time, but I don’t have any feel for whether this is typical or not.
The big news story buried inside both this Independent-UK article and in the year-old ScienceDaily article is that the Center for Disease Control’s U.S. National Institute of Occupational Safety and Health is funding studies on Chinese citizens in China based.
What the…? Would anybody care to explain why U.S. tax dollars are testing BPA exposures in China and not here on U.S. workers?

My comments are:

1. If you don't know is something is typical or not then you have absolutely no reason to be "a little skeptical". The smart thing to do would be to find out if it is typical before commenting. 
2. Why is the "big news" that the research is being done overseas
3. Does anyone have any doubt that if the research was being done on American workers then folks would be up in arms at using them as guinea pigs.