Despite the uncertainty about the fate of the detainees, Gibbs says the president is committed, above all, to Americans' safety.

VOA: standard.2009.05.20

"I do not know the volume. The volume is uncertain. There is a large uncertainty range around the 5000 barrels.

VOA: standard.2010.05.02

The political uncertainty comes as Afghanistan faces its worst violence since the invasion that ousted the Taliban in late 2001.

VOA: standard.2009.09.12

Art Cashin,the floor director at UBS Financial Services, says many investors worry that the uncertainty in Europe could trigger another global meltdown.

VOA: standard.2010.05.21

Milner says Darwin's ideas upset old orthodoxies, but that he embraced the uncertainty and excitement of science.

VOA: standard.2009.11.25

Thailand has faced four years of political uncertainty, since a military coup ousted Prime Minister Thaksin Shinawatra.

VOA: standard.2010.05.21

As markets have rallied worldwide, China's move appears to have brought a ripple of hope, in what has been a sea of uncertainty.

VOA: standard.2010.06.21

A just-released International Crisis Group report says the fraudulent first round and continuing political uncertainty have been a boon for the Taliban insurgency.

VOA: standard.2009.10.28

The 81-year-old king of Thailand has no formal political role but has been a unifying force in Thailand during periods of political uncertainty.

VOA: standard.2009.10.15

But key indexes rose sharply as the day wore on. Chief economist Peter Cardillo at Avalon Partners blamed uncertainty for the market volatility.

VOA: standard.2010.07.20

Jitti says as long uncertainty remains over the global economy, gold will remain a popular investment.

VOA: standard.2010.07.21

And it came at a time of uncertainty in relations between the United States and Japan.

VOA: standard.2009.11.13

For many investors in Asia, gold's role as a source of safety and value has been reinforced over the past year of economic uncertainty.

VOA: standard.2010.07.21

The president says the class of 2009 is leaving college at a time of economic uncertainty.

VOA: standard.2009.05.14