Official websites use .gov A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
NOTE: Pages 1 and 2 are missing from the donated speech. This speech was originally prepared to be delivered to the annual meeting of the American Association for the Advancement of Science on 12 February 1988.