http://60minutes.yahoo.com/segment/177/doomsday_vault
It's located some 700 miles from the North Pole, buried hundreds of feet deep in rock and ice, safe and secure from intruders, natural disasters and even military attack! What's inside? Hundreds of millions of seeds from more than 100 countries, all assembled and kept safe to protect the world's fragile food supply. Bundle up, as Scott Pelley heads into the frozen north for a tour.