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

That is our basic challenge now,". Geithner says it will take some time to bring down unemployment levels, which in October reached a 26-year high in the United States.

VOA: standard.2009.11.12

So the challenge for us as an international community is to try to make sure we're marshaling our resources, our efforts,so that we can do the job and leave.

VOA: standard.2009.03.23

It is a long-term endeavor and we both are united to fight against this endeavor, which is challenging our way of life and wants to challenge the way of life with the world."

VOA: standard.2009.05.13

"The challenge right now is that our emergency pre-positioned supplies were running quite low because the response in West Java was in progress still and that quake had just happened a few weeks ago,"

VOA: standard.2009.10.01

"What President Obama is going to be doing at the summit is to be working with President Calderon and Prime Minister Harper to discuss what we are doing collaboratively to deal with the challenge, making sure that our public health departments and officials are working closely together,".

VOA: standard.2009.08.10

"When you put that all together it suggest that we are going to need something like 50 percent more, perhaps 100 percent more, food from our existing land and that is a very significant challenge and we believe we need to be thinking seriously about that right away,"

VOA: standard.2009.10.21