I think the term "miracle" may be a bit misleading, but it is rather accurate to describe the fact that we have survived the discovery of nuclear power. Michio Kaku, in his lecture, "Journey Through the Tenth Dimension", was talking about the possibility of discovering intelligent extra-terrestrials. He mentioned how the Drake euations (at least I think it was the Drake equations) indicate that life shoud abundant in the Universe (perhaps millions in just our galaxy alone). However, a severe limiting factor is the fact that the probability of self-annihalation dramatically increases, following the discovery and harnessing of nuclear power. So, the fact that humans have continued to exist this long is something of a spectacle (or "miracle"), and I think that's something that the world should be reminded of when they even consider using nuclear weapons in war. Why, after having survived it for this long, should we give in and become "just another extinct sentient race"?