U.S.

Oklahoma tornado victim search efforts winding down

After nearly 24 hours of searching, fire chief said he was confident there were no more bodies or survivors in the rubble

Boston Attacked

How were Boston bombs detonated?

Sources say twin marathon explosions were triggered by remote control, giving suspects time to safely walk away

Boston bombing survivor determined to dance again

Dance instructor Adrianne Haslet-Davis lost her foot in last week's attack but vows to step onto the dance floor again

End game for Boston bomber suspect

Last Boston Marathon bombing suspect captured in Watertown, Mass., after prolonged manhunt

Boston Marathon terror attack videos

Explosions at finish line of world-renowned race caught on tape

Texas plant blast

Texas fertilizer plant explosion

A huge fertilizer plant explosion in West, Texas, has left 14 dead and over 100 people injured

Earth Day

Rooftop farms: The future of agriculture?

Urban farmers are turning to city rooftops to feed demand for fresh, locally sourced food

Is recycling worth it?

Those blue bins have earned their fair share of critics over the years, but some environmentalists say don't give up yet

Galleries

Oklahoma tornado: Before and after photos

A look at Moore, Okla. before and after a deadly tornado passed through

Deadliest U.S. tornadoes

A look at some of the most destructive storms to hit the U.S.

Latest

View More U.S. Headlinesplus