In Seattle, It's Raining Research

Surprising findings on AIDS, cancer, woodlands, and birds

More than 5,000 scientists and reporters convened under clear skies in Seattle last week for the annual meeting of the American Association for the Advancement of Science. One headliner: Microsoft Corp. Chairman Bill Gates, whose prophecies were interrupted when his software flopped. Researchers discussed advances in such fields as AIDS, genetics, and birds' migration patterns. Senior Correspondent John Carey and Senior Editor Paul Raeburn report some of the highlights.