Officials in other countries are warning about the health hazards of alcohol in any amount. Americans are still told that moderate drinking is safe. What gives?
In his decades as a former president, he and his wife, Rosalynn Carter, helped bring lifesaving treatments and sanitation to poor people around the world.
Tiny genetic alterations could help the bird flu virus enter cells in the upper respiratory tract, the C.D.C. said. But there is no sign that mutations are widespread in nature.
The astronauts on the I.S.S. — including two who were scheduled to return months ago — held a zero-gravity cookie-decorating contest and built a reindeer from storage bags.
