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.

Iran’s nuclear program is believed to have steadily progressed, despite sharply increased concerns over its intentions and sanctions over its lack of transparency.

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.

One year into the U.S. State Department’s effort to transform foreign assistance programs, funding is up but criticism remains over the scope of the reforms.

Backgrounder: North Korea is the latest member of the world’s still-exclusive nuclear club. But other aspirants are waiting in the wings.