Reducing the Risk of Human Extinction
wiredog sends in a study from the University of Pittsburgh Medical Center Center For Biosecurity, assessing risks of human extinction and the costs of preventing it. "In this century a number of events could extinguish humanity. The probability of these events may be very low, but the expected value of preventing them could be high, as it represents the value of all future human lives."Read more of this story at Slashdot.