The Demon-Haunted World: Science as a Candle in the Dark

by Carl Sagan

In the good old days before the alien abduction paradigm, people taken aboard UFOs were offered, so they reported, edifying lectures on the dangers of nuclear war. Nowadays, when such instruction is given, the extraterrestrials seem fixated on environmental degradation and AIDS. How is it, I ask myself, that UFO occupants are so bound to fashionable or urgent concerns on this planet? Why not even an incidental warning about CFCs and ozone depletion in the 1950s, or about the HIV virus in the 1970s, when it might really have done some good? Why not alert us now to some public health or environmental threat we haven’t yet figured out? Can it be that aliens know only as much as those who report their presence? And if one of the chief purposes of alien visitations is admonitions about global dangers, why tell it only to a few people whose accounts are suspect anyway? Why not take over the television networks for a night, or appear with vivid cautionary audiovisuals before the United Nations Security Council? Surely this is not too difficult for those who wing across the light-years.