But a shift in emphasis to security issues offers a new set of challenges for the president.

VOA: standard.2010.01.06

The groups urged the winner to be magnanimous as he will face immense challenges as the new president "that should transcend partisan politics."

VOA: standard.2009.07.26

The WHO Chief says the new Swine Flu A-H1N1 virus shows how health challenges are changing.

VOA: standard.2009.05.18

And Republicans have their own challenges trying to find new leaders and craft a cohesive message beyond simply opposing the president and his policies.

VOA: standard.2010.01.06

In addition to the pipeline, the new Czech government faces other E.U.challenges, including a crucial June summit that will deal with the so-called Lisbon Treaty.

VOA: standard.2009.05.11

But he warned that the looming rainy season could present new challenges.

VOA: standard.2009.06.11

But the critics and supporters agree one of the British national health service's biggest challenges, as it enters its seventh decade, are the mounting cost of new technology and medicines, and an aging population.

VOA: standard.2009.09.24

On the the 40th anniversary of Earth Day, this warming planet we live on is posing serious new challenges to human civilization: increasingly severe droughts, floods,and storms across the globe, and slowly rising ocean levels.

VOA: standard.2010.04.21

Dr.Sagir Ahmed of Aminu Kano Teaching Hospital in Kano was one of the organizers and speakers at a conference on the challenges of diagnosing cancer in Nigeria: is the WHO says that 70% of the new cancers that will be seen in the future are going to be affecting individuals in the developing nations -- the so-called poorer segments of the world.

VOA: standard.2010.06.16