Until this year, Pyongyang has denied U.S.accusations it possessed a covert HEU, or highly enriched uranium program, in violation of previous agreements.

VOA: standard.2009.09.06

MENENDEZ: "I'm just not here a blank check. I said that in the previous administration, and as much as I respect this one, I believe the same standards have to apply."

VOA: standard.2009.05.12

"My April results, like the three previous ones, registered a negative outcome."

VOA: special.2010.04.28

"It re-defines the definition of a cash payment back to the previous terms of payment after the ship has been loaded;

VOA: standard.2010.07.29

At previous summits, the United States set forth an ambitious and still unattained goal: forging a vast, hemisphere-wide free-trade zone.

VOA: standard.2009.04.15

The result ended a medal drought for Morrison, who had failed to medal in his previous events at these Olympics.

VOA: standard.2010.02.28

James Burke of Duke University is one of the authors of a study reviewing previous research on cognitive decline.

VOA: standard.2010.06.17

More than 40 boats carrying refugees seeking asylum in Australia have been intercepted this year, a sharp increase from previous years.

VOA: standard.2009.10.27

Dr.Mark Hamer of University College London says previous research found that smokers have a higher rate of mental illness, specifically depression.

VOA: standard.2010.06.15

Ayatollah Khamenei, during a Wednesday speech, retracted previous charges that opposition leaders were being backed by foreign powers.

VOA: standard.2009.08.28

So we combined data across nine individual studies, so we have a lot more power than previous studies that looked at this.

VOA: standard.2010.06.30

Secretary Gates said the new plan will allow flexibility and put in place a defense system more quickly than the previous proposal.

VOA: standard.2009.09.17

Among the album's 14 tracks are a few that deal with more serious themes than his previous releases.

VOA: standard.2009.09.03

At the previous conference, President Karzai pledged a commitment to improve security,governance and economic opportunities for Afghans.

VOA: standard.2010.07.20