Secretary of State Hillary Clinton, a senator and former First Lady, has offered a tough pragmatism on national security matters and called for reviving U.S. credibility in the world.

Political volatility among the world’s leading oil producers suggests deeper causes for recent price spikes.

Terrorist attacks and an emergent Russia are posing new challenges to Turkey’s energy strategy, but some analysts warn it could be Western Europe that gets squeezed.

As the United States looks to reform its health care system and expand access to the uninsured, countries that have moved toward universal health care may offer lessons.

The G20 meetings in Toronto will be marked by competing agendas on global growth and financial regulations. This Backgrounder looks at the range of policy concerns.