ALT: a nbc advertisement for world of dance is shown

ALT: a man wearing glasses is clapping in front of a crowd of people

The National Institutes of Health had to stop considering new grant applications, delaying funding for research into diseases ranging from heart disease and cancer to Alzheimer's and allergies.

ALT: a man with long hair and a hat says " we 're going to perish in this godless land "

Bird flu has killed millions of hens in recent weeks, shrinking the supply of eggs and hiking up prices at grocery stores.

ALT: a young boy in a blue shirt is looking at the camera .