After Republicans snuck a clause protecting Eli Lilly from potential autism related lawsuits in the Homeland Security Act, the Department of Justice is trying to seal the evidence in related suits that attempt to link the mercury-derived preservative in many childhood vaccines to autism, so they can't be used by plaintiffs in the future.
This, combined with some of the forced vaccination clauses in the Homeland Security Actr can only be a pay-off to big pharma comanies that have supported the Republicans during the past several years, including campaign contributions to the President.