Why Carcinogens Have Infiltrated the Generic Drug Supply in the U.S: “At least 80% of the active pharmaceutical ingredients for all drugs are made in Chinese and Indian factories that U.S. pharmaceutical companies never have to identify to patients, using raw materials whose sources the pharmaceutical companies don’t know much about. The FDA checks less than 1% of drugs for impurities or potency before letting them into the country.” Even if an FDA inspector visits the factory and finds irregularities or contamination, it’s likely that nothing will be done about it. This is a pretty damning article from Bloomberg.