This article in the Sacramento Observer reports Congressman Posey's revelation to congress that Dr William Thompson of the CDC has revealed the deliberate omission of data in a 2004 study of the link between MMR and autism. The other authors not only omitted damning data and conclusions from the final publication but destroyed documents in order to cover it up. Sadly the Sac Observer is just one of two publications in the entire country that has reported on this so far.
http://sacobserver.com/2015/07/u-s-congressmans-statement-questions-science-cited-to-support-school-vaccine-bill/