Russia tries to gain a foothold, not a competitor. By Sara Stefanini and Kalina Oroschakoff.

Advanced particle detectors could be the key to ensuring the success of the agreement. By Patrick Tucker.

German Vice Chancellor Sigmar Gabriel is in Iran on a three-day visit aimed at building trade relations. The trip follows an agreement to lift sanctions in return for Tehran reining back its nuclear program.

Iran's parliament will need "at least" 60 days to review a proposed final deal with world powers over its contested nuclear program, a prominent lawmaker said Tuesday, giving legislators in the Islamic Republic about the same time as the U.S. Congress to examine the proposal...

Iranian Supreme Leader Ali Khamenei’s speech last Friday vowing that his country’s policy against the “arrogant” United States would not change was “disturbing,” Secretary of State John Kerry says... By Nick Gass.

An Iranian court could be nearing the end of its trial of a detained Washington Post journalist on charges that include espionage, his lawyer said Monday, amid increasing calls for his release after nearly a year in custody. By Brian Murphy.

After serially breaking a variety of self-imposed deadlines, six world powers and Iran reached agreement on plans for long-term limits on the Iranian nuclear program and the easing of international economic sanctions on that country... By John Mecklin.