THere is a man named Johathan Gray that has written a book called, Dead Men's Secrets, that tells of nuclear wars in ancient times. Also Rene Norebergen has written confirming these same facts.
Here is one one Jonathans articles.
http://www.beforeus.com/indusa.htm

JussyRider --

I'm afraid you don't understand the concept of "nuclear family." It refers to a single, centralized family unit based on parents and their children. The word "nuclear" is used in its original sense of nucleus "the central part of an object, movement or group forming the basis for its activity and growth." [from the Latin "nux"]

A nuclear family has nothing in common with a nuclear war -- except both involve occasional blow-ups ...