"The reason those vents have not been closed yet are two reasons." "To prohibit the buildup of hydrates and something called chatter.

VOA: standard.2010.06.08

Eric Calais,a geophysicist, says that sudden movement can follow a buildup of stress as adjacent plates struggle to move past each other.

VOA: standard.2010.01.13

When Flournoy speaks of changing the focus of U.S.efforts, she is partly referring to the drawdown of U.S.troops from Iraq, the troop buildup in Afghanistan and efforts through the budget process to provide more civilian assistance for Afghanistan.

VOA: standard.2009.03.27

"To talk about this policy and how we can have success, instead of having a buildup of 51,000 to 100,000 and then we have got the same problem that other great nations have had in Afghanistan.

VOA: standard.2009.03.17

FEINGOLD: "Are you sure that the troop buildup in Afghanistan will not be counterproductive vis--vis Pakistan?" HOLBROOKE: "No.I am only sure that we are aware of the problem, that we are working intensely with the Pakistani army."

VOA: standard.2009.05.12

Clinton's comments at a joint press event with the Uruguayan leader were the highest-level expression of U.S.concern thus far about a Venezuelan arms buildup that gained momentum with an announcement this week that the South American state will buy Russian battle tanks and anti-aircraft missiles.

VOA: standard.2009.09.15