ProPublica's investigation of FDA oversight of foreign generic drugmakers found the agency allowed imports from banned factories — exempting at least 150 drugs over a dozen years — while inspectors reported mold, dirty labs, contaminated vials, and destroyed testing records. It follows Hannah Goetz, who died at 21 after taking generic tacrolimus, some tested samples of which had lower amounts of the key ingredient, and offers an Rx Inspector tool to look up a drug's manufacturing facilities.