Paleontologists say they discovered rare object in chest cavity of fossil skeleton uncovered in South Dakota. Heart, size of a grapefruit, was encased in stone. Organ fossilized into reddish-brown stone 66 million years ago. Seven large manufacturers seek to keep New York, Connecticut, and 16 local governments from favoring purchases from companies that agree to stringent rules. Technique involves adding working genes to cells.
Researchers note that patients had a disease especially suited for the treatment.
Thousands homeless as floods sweep away schools and clinics, crops, and cattle.