. >> i want to bring in mary holland right now. eacher at nyu law school and you've also set up a foundation and advocacy, i should say nonprofit group to help parents who are in this case. and this letter that's gone out to the 5,000 people who are waiting for some sort of judgment. is this the end of the line for them? >> it probably is, alisyn. the omnibus office and proceeding has been going on over eight years with the 5,000 claims and tested two theories. did mercury inductees cause audition, did the mmr, measles, mumps and rubella cause autism they decided in six test cases, no, vaccines don't cause autism. and court of appeals, the decision, no. they said to the families, look, if you have nothing different than the test cases, let us know. >> and as we heard from dana, it sounds like they're making the families jump through almost impossible legal hoops. they want them to go out and drum up their own medical expert and come up with a new medical theory? why are they making it so tough? >> well, they feel the court of federa