LA Times: In the 1957 Isaac Asimov short story "Silly Asses," Earthlings are added to a galactic book of planetary races that have reached maturity -- defined as those that have developed nuclear capability. But then the keeper of the book learns that atomic tests are being conducted on Earth and crosses the planet off the list. Asimov was writing during the A-bomb years, before the construction of nuclear power plants. How unacceptable would it seem to the fictional keeper of the book that we have been building...