reviews the 2010 book and the 2014 documentary film, Merchants of Doubt. Even though you may think the subject is exhausted by now, Louis Proyect's review has new insights. The two Freds (Fred Seitz and Fred Singer) play important roles, of course. But did you know that Fred Singer was once funded by the Unification Church and Rev. Sun Moon?? I didn't know that and I suspect many Rabett Run readers didn't know that, either.