It can store the information from a million CDs in a space no bigger than your little finger, and could keep it safe for centuries. Is this some new electronic gadget? Nope. It's DNA. The genetic material has long held all the information needed to make plants and animals, and now some scientists are saying it could help handle the growing storage needs of today's information society. Researchers reported Wednesday that they had stored all 154 Shakespeare sonnets, a photo, a scientific paper, and a 26-second sound clip from Martin Luther King Jr.'s "I Have a Dream" speech. That all...