"I had to take a chance that Stanley is going to represent a key moment in the history of American technology that indicates the future of driving.

VOA: special.2011.06.21

The refusal of Pakistan's President Asif Zardari to reinstate Chaudhry is a key issue driving the protest, in advance of which the government has arrested hundreds of lawyers, opposition politicians and activists.

VOA: standard.2009.03.11

Is that a key driving force here -- to make sure that they're safe?

WHITEHOUSE: Press Briefing

They have built up the idea of an app-economy as one of the key driving forces, but these apps are coming from a very small pool of major development houses and in-house clients for social networks.

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Note that one key factor driving people to the Web is a search for bargains.

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