"[[w:Tetraethyllead | [T]etraethyl lead]] could be marketed as an anti-knock additive to gasoline [but a] half a cup of it on your skin could kill you. . . . What was needed was a man of science to calm the public's fears and improve lead's image. . . . This was one of the first times that the authority of science was used to cloak a threat to public health and the environment."
January 1, 1970
https://en.wikiquote.org/wiki/Cosmos%3A_A_Spacetime_Odyssey