In 1996, Carl Sagan was interviewed on the Charlie Rose Show where he warned about the dangers of being ignorant of science in an age when society is practically based on science and technology. When the general public is ignorant of science, who makes the decisions on science and technology?
Sagan also describes the proliferation of psuedo-science (e.g. UFOs), superstition, and literal interpretations under religion as problematic to society. He encourages skepticism as a way forward both to accumulate knowledge, and as a way to keep society from self-destructing.