She says the danger is real. "It's the number one threat to American security today - to American and global security,frankly.

VOA: standard.2010.04.06

That approach requires a large number of troops to provide security and help the local government assert its authority and deliver services.

VOA: standard.2009.10.01

Security experts agree that given the number of targets and the infinite ways they can be exploited, security can never be 100 percent.

VOA: standard.2010.01.19

But he says a significant number of foreign troops will be needed to help establish and then maintain security in Afghanistan, possibly for decades.

VOA: standard.2009.10.16

Meanwhile,security forces reportedly arrested a number of women protesters at a Tehran park, who meet regularly to protest their children's detention in government prisons.

VOA: standard.2009.12.07

President Obama and his national security team are considering a request from his new commander in Afghanistan, General Stanley McChrystal, for a substantial number of additional troops.

VOA: standard.2009.10.13

Ambassador Rice said she expects a large number, if not all, of the 15 Security Council members to be represented at the head of state or government level.

VOA: standard.2009.09.02

As part of the new strategy, Napolitano says the United States will double the number of border security teams, and will quadruple the number of border liaison officers who work with Mexican officials.

VOA: standard.2009.03.24

"It needs to be fully vetted, and when it is then we'll determine a number that makes sense for the security and stability of Afghanistan, that the Afghan government and its people can sustain with the assistance of coalition partners,".

VOA: standard.2009.03.31