I would not consider Carl Sagan or Richard Dawkins "PR people". While they do educate the public, "PR people" tends to refer to someone who has an active intere

I would not consider Carl Sagan or Richard Dawkins "PR people". While they do educate the public, "PR people" tends to refer to someone who has an active interest in a particular side of an issue, rather than a general interest in educating the public.