text:  and that everybody in the car is a suspect. Alex Stone, ABC News. Conservation experts this morning now say about 45,000 species are threatened with extinction, up about 1,000 from last year. And a new study says your daily multivitamin may not be doing much for you if you're relatively healthy. The National Institutes of Health looked at 400,000 people and found multivitamins did not affect their risk of things like heart disease or cancer. I'm Sherry Preston, ABC News.