Is it the ultimate in literary immortality or is it vanity gone wild? Or is it just crazy? A printer is being asked to print a book with ink containing the author’s DNA. Whether there are any technical problems involved I don’t know. But apparently DNA inks have been around a while — here’s an article from the New York Times in 2000, about DNA ink being used to authenticate souvenirs from the Sydney Olympics. And this Yahoo piece is from 2007: we must have missed out on the trend for authors to send their finger nail clippings to their publishers for incorporation in the ink for their books. (Maybe there’s more to be said for ebooks than the defenders of print first thought.) Nissha Printing Company goes into some detail, and is focussed on DNA ink’s use as a security/authentication mechanism.