How Do We Perceive Risk?
Why mass murders and other tragedies that kill scores of people make us most fearful.
How Risky Is Flying?
Harvard's David Ropeik explains why judging risk is a risky business.
National corporate funding for NOVA is provided by Draper. Major funding for NOVA is provided by the David H. Koch Fund for Science, the Corporation for Public Broadcasting, and PBS viewers. Additional funding is provided by the NOVA Science Trust.