I am not going to walk away from the American people. I am not going to walk away on this challenge.

VOA: standard.2010.02.06

"I think the world need to understand that this is the new challenge of the 21st century, and this is the new war,"

VOA: standard.2009.05.10

"So I can challenge somebody and they can challenge me just on an on-going basis.

VOA: standard.2010.07.16

I am not going to walk away from any challenge. We are moving forward."

VOA: standard.2010.02.06

"I know starting your careers in troubled times is a challenge,"

VOA: standard.2009.05.14

And I think that our challenge and the country's challenge is to get to the point where we can afford the healthcare system that we have in our country."

VOA: standard.2010.02.25

Therefore,they are looking to have more compatible media to challenge those stations, which broadcast to Iran, and I do not think they are going to succeed, because of the limit they have in order to talk about issues we talk about.

VOA: standard.2009.11.16

but in Me and Orson Welles McKay says the challenge was to rediscover the brash young man who would become the stage and screen icon: "I felt a tremendous responsibility toward him,especially because of his own mythology his own myth making,"

VOA: standard.2009.12.17

"I think that the proposal that the President made in Geneva to have Iran withdraw its enriched uranium, or a good portion of it, outside Iran is a positive first step in that direction and I support and appreciate the President's ongoing efforts to unite the international community to address the challenge of Iran's attempts to become a nuclear military power,"

VOA: standard.2009.10.30