Jeni Barnett hosts a phone-in radio show that recently took a strong position against MMR, with pseudo-science so bad it was described as "irresponsible, ill-informed, and ignorant" by Ben "Last reason to bother with the Grauniad" Goldacre.
You can listen again through Wikileaks.
Jeni Barnett's own reply shows an interesting approach to her faith-based view of truth and antipathy to measurable fact, "When tested on the contents of the MMR vaccine I told the truth. I did not have the facts to hand." She also invites us, "I urge you to continue the debate", which does sit rather awkwardly with the threats of legal action to silence exactly that.