The attorney general and the secretary of state threatened to resign if President Buchanan gave in to South Carolina's demands.

VOA: special.2009.07.23

Working with researchers throughout the world, Borlaug began to offer his methods in areas where people were threatened with starvation.

VOA: special.2009.11.10

Some places like Australia's Great Barrier Reef and Montana's Glacier National Park are threatened by the effects of climate change.

VOA: special.2009.04.22

The crisis in Greece has threatened to spread to other countries and has led to protests and violence over spending cuts.

VOA: special.2010.05.14

It says that nearly one third of about eight hundred bird species in the United States are threatened in some way.

VOA: special.2009.05.12

The project also works to prevent languages from dying out by identifying the most threatened areas where languages are disappearing.

VOA: special.2009.12.02

But recently, civil liberties groups had threatened to take the county to court if it did not remove them.

VOA: special.2011.03.17

Cacao trees grown on farms are much more easily threatened by disease and insects than wild trees are.

VOA: special.2010.02.17

He had threatened to take the South out of the Union if any limits were put on slavery.

VOA: special.2009.04.16

They're not a threat, they're threatened. And you also can reach out to them in your own way.

VOA: special.2009.05.08

More than one third of all threatened or endangered bird species in America live on the Hawaiian Islands.

VOA: special.2009.05.12

But she was able to persuade diplomats to move some people out of the most threatened area.

VOA: special.2009.03.09

He also warned that the recovery could be threatened if any new problems hit the financial system.

VOA: special.2009.05.08

Technical and mechanical systems are also responsible for getting the news of huge waves to threatened areas.

VOA: special.2009.03.17