Based on Jared Diamond's Pulitzer Prize-winning book of the same name, Guns, Germs and Steel traces humanity's journey over the last 13,000 years - from the dawn of farming at the end of the last Ice Age to the realities of life in the twenty-first century.A PBS documentary concerning Jared Diamond's theory on why there is such disparity between those who have advanced technology and those who still live primitively. He argues it is due to the acquisition of guns and steel and the changes brought about by germs.