In 2000 [3M and Dupont] came out and they had a press conference and they said ‘hey, we’re phasing these chemicals out because we’ve learned that they build up in people’s blood and that they’re very persistent. Meaning they don’t break down in the environment. ‘ They claimed at the time and still do that the chemicals aren’t harmful at levels found in people. But they had, just a little bit before this public announcement, shared a bunch of these formerly secret studies that they had done with the EPA, where, for example in the late 70’s, they had had to stop one study because every monkey in the lab that was fed the scotch-guard chemical died. They knew that it was in the blood of their workers. At Dupont … they knew that … women who worked in the PFOA production area had given birth to babies with birth defects that were very similar to what the company had found when it tested rats. So again, they knew this.