I spent the next 10 years trying to track down the answer. Our health care system relies on generics. My family does, too. But a decade of interviews, meetings with whistleblowers, on-the-ground reporting across four continents and thousands of confidential files -- from the FDA, from generic drug companies and from the courts -- all pointed me in the same direction: a large number of generic drug manufacturers in certain overseas countries are passing off substandard drugs as legitimate generics for profit. They are deliberately flouting FDA regulations and standards. Basically, they are committing fraud.
I occasionally add a personal note to them.
The whole collection is available here.