It drove us to the moon. We -- literally in fear -- with the Soviet Union raced to the moon. And we have these huge rocks, you know, killer-sized rocks in the hundreds of thousands or millions out there, and while the probability is very small, the impact, figured in literally, of one of these hitting the Earth is so huge that to spend a small fraction looking, searching, preparing to defend, is not unreasonable.
On nas je odveo na Mjesec. Utrkivali smo se – doslovno u strahu – sa Sovjetskim Savezom do Mjeseca. I imamo ove velike stijene, stotine tisuća i milijune ubojitih stijena u svemiru, i premda je vjerojatnost vrlo mala, posljedice ako jedna od njih pogodi Zemlju su tako ogromne da utrošiti malo na promatranje, potragu, pripremu na obranu nije nerazumno.