Researchers at Johnson & Johnson detected unsafe levels of asbestos in the talc as part of their own internal testing. There are internal emails that show high level executives asking researchers to switch to a less sensitive test which would allow them to make the concentration of asbestos appear lower than it really was. I remember that when the story first dropped, the people writing J&J's press releases were very careful to use only the present tense when discussing the asbestos levels in their talcum products which implies to me that they did eventually rectify it. That's all I know. I didn't follow the story for very long.