When 'activists' become stone cold killers

The vaccine autism hoax is a small example.  A much more murderous one is the DDT hoax that has let a previously controlled condition - Malaria - rage out of control, killing at least 50 million mostly children around the world.  Bill Gates comments:

BILL GATES ON THE VACCINES/AUTISM HOAX:

Well, Dr. Wakefield has been shown to have used absolutely fraudulent data. He had a financial interest in some lawsuits, he created a fake paper, the journal allowed it to run. All the other studies were done, showed no connection whatsoever again and again and again. So it’s an absolute lie that has killed thousands of kids. Because the mothers who heard that lie, many of them didn’t have their kids take either pertussis or measles vaccine, and their children are dead today. And so the people who go and engage in those anti-vaccine efforts — you know, they, they kill children. It’s a very sad thing, because these vaccines are important.

Who will hold these murderous 'activists' to account?  Hat tip instapundit.