This link will take you to abcnews.com - to hear a 5 minute video clip. The woman speaking is Dr. Bernadine Healy, former head of the NIH (Nat'l Institute of Health), and most recently head of the Red Cross.
Click here to watch.
Dr. Healy is a very well respected mainstream doctor and leader in the medical community who has had the COURAGE to speak out against our government's health agencies' refusal to thoroughly study any links between vaccines and autism.
Her point in this clip is that there is most likely a group of children who are more susceptible to vaccine injury than the general population. She believes (or rather, says that she knows) that government health officials won't study this subset of affected children, because they fear the vaccine program as a whole will suffer, when they can identify the susceptible group.
It's worth watching.