World powers are now offering to ease sanctions on Iran if it agrees to halt its most sensitive nuclear activity. Expert Daryl Kimball urges a full diplomatic press to stop Iran from crossing the nuclear weapons line.

North Korea's third successful nuclear test has been widely condemned by the international community. CFR's Paul Stares highlights three things to know about the test and its implications for nuclear nonproliferation.

A take-it-or-leave-it deal by the United States on the nuclear issue is the wrong strategy, says Ray Takeyh.

Ayatollah Ali Khamenei made these remarks at a meeting with Iran's air force on February 7, 2013, responding to U.S. Vice President Joe Biden's offer of direct talks about Iran's nuclear program.

In the nuclear dispute between Iran and the United States, a grand bargain is unlikely given the level of mistrust between the two parties. What's more realistic is a modest compromise that breaches the wall of mistrust and potentially sets the stage for further-reaching arms control measures, says Ray Takeyh.

Halting Iran's progress toward a bomb will require the United States to make credible promises and credible threats simultaneously -- an exceedingly difficult trick to pull off.

Director General Amano discusses challenges facing the IAEA, including action plans for global nuclear safeguards and security.

Director General Amano discusses challenges facing the IAEA, including action plans for global nuclear safeguards and security.

President Obama gave these remarks at the Nunn-Lugar Cooperative Threat Reduction Symposium on December 3, 2012.

The IAEA Board released the Director General's quarterly report on progress of the NPT Safeguards Agreement with Iran, on November 16, 2012. The report provides an update on the nuclear situation in Iran since the last report of August 2012.

Graham Allison ("The Cuban Missile Crisis at 50," July/August 2012) seems to believe that U.S. President John F. Kennedy's handling of the Cuban missile crisis was an unalloyed success.

Michael A. Levi and Micah Zenko say nuclear terrorism, however unlikely, is one of the few prospects that could truly devastate the USA, and there are still steps that the U.S. can take to reduce the odds of a catastrophic attack.

The drawn-out talks between Iran and the P5 +1 nations over Iran's nuclear program are expected to resume after the U.S. presidential elections, says veteran arms control expert Daryl Kimball.

Iran's nuclear ambitions have tended to dominate discussions in the U.S. presidential campaigns over nuclear nonproliferation.

In the case of Iran, Richard N. Haass says, "Diplomacy needs to be move faster if is not to be overtaken by Iran's march to a nuclear weapon—and, with it, by the West's march to conflict."

The Columbia Law School Human Rights Clinic undertook a study of the impact that U.S. drone strikes have on civilian populations, as well as the difficulties in accurately tracking consequent civilian casualties.

Protests in Pakistan led by politician Imran Khan show how U.S. drone strikes are being exploited in the run-up to the general election, says expert Joshua Foust.

Iranian foreign minister Ali Akbar Salehi discusses Iranian foreign policy in the Middle East.

Micah Zenko says even though telling the United States that it should be more scared of Iran has failed so far, Israeli officials will continue to sound the alarm about a nuclear-armed Tehran, with the ultimate objective of changing America's threat perception.

Rose Gottemoeller, Acting Under Secretary for Arms Control and International Security, gave these remarks regarding "the Last US Nuclear Test--20 Years Later: Status and Prospects for the Comprehensive Test Ban Treaty" on September 26, 2012.