A return to the negotiation table could relieve some of the tension that has built up over threats of an Israeli military strike on Iran nuclear targets.
One of Obama's objectives entering the White House was to show that dialogue could be more effective than confrontation with US adversaries. From Iran to Burma, here's how it's going.
Is Iran pursuing a systematic strategy to provoke its enemies? It's not always that simple.
The UN's nuclear watchdog is set to rebuke Iran over its nuclear program. No sanctions are planned, but the US will keep pushing, and some experts say diplomacy could still work.
Iran's leadership may be keen to offer a goodwill gesture, some observers suggest. Others wonder if the release of the two US hikers is tied to the controversy over Iran's nuclear program.