Top International Atomic Energy Agency officials arrived in Iran Sunday, state media reported, after the head of the United Nations nuclear watchdog expressed fresh concerns that the Islamic republic was trying to develop nuclear weapons.
Iran's envoy to the International Atomic Energy Agency said Friday he is hopeful that the recent planned visit by representatives of the nuclear watchdog will "resolve any ambiguity and show (our) transparency and cooperation with the agency."
Iran has issued an impassioned letter to the United Nations Secretary General charging that the killings of Iranian nuclear scientists were terror attacks that followed a clear pattern -- an assertion the country's ambassador to the United Nations repeated to CNN in an interview Wednesday night.
A nuclear scientist was killed in a blast in Tehran on Wednesday morning, an Iranian news agency reported, in the latest in a string of attacks that Iran has blamed on Israel.
Iranian President Ahmadinejad said in an address on state TV, "Why don't you do a report about the US nuclear program?"
The United Nations' nuclear watchdog agency confirmed Monday that uranium enrichment has begun at a nuclear facility in northern Iran.
Iran's Bushehr nuclear power plant is just weeks from operating at full capacity, the country's top nuclear official said Saturday.
It's been a year since the United States ratified the New Strategic Arms Reduction Treaty with Russia, and it's time to reflect on its benefits. By allowing us to restart inspections, verifications and the dismantling of nuclear assets, New START has established transparency, predictability and stability that serves the security of the whole world.
Iran has succeeded in building and testing the country's first domestically produced nuclear fuel rod, the semi-official Fars news agency reported Sunday.
Another round of talks between Iran and world powers is expected to be held soon, Iran's ambassador to Germany said.
As Gen. Martin Dempsey toured around the globe over the last eight days, one issue was prominent -- Iran's nuclear intentions.
A possible exchange of U.S. nutritional aid to North Korea for a halt to Pyongyang's uranium enrichment program has stalled with the death of North Korean leader Kim Jong Il, U.S. and South Korean officials said Monday.
Google CEO Eric Schmidt talks to CNN's Erin Burnett about the downed drone in Iran and cybersecurity.
Some analysts have attributed the recent downing of a U.S. RQ-170 Sentinel high-altitude reconnaissance drone in Iran to that nation's increasingly sophisticated capability to launch cyber attacks. Others have dismissed the idea that Iran was capable of bringing down an RQ-170, arguing that Iranian air defenses do not have the capability to track an aircraft with radar-evading technology.
CNN's Erin Burnett talks to Sheikh Mohammed, PM of UAE, about life in the UAE, freedom of the press and security.
A leader of the United Arab Emirates discounted concerns about a nuclear-armed Iran in a CNN interview Monday, saying Tehran would find the ultimate weapon to be of little use.
Michele Bachmann (R-Minnesota) raised concerns about potential threats to Pakistan's nuclear arsenal during Tuesday's Republican candidates' debate on national security issues.
Treasury Secretary Timothy Geithner and Secretary of State Hillary Clinton discuss new sanctions aimed at Iran.
Russia called new sanctions against Iran "unacceptable," saying the new punishments would hurt efforts to talk with Tehran.
The United States announced tougher sanctions against Iran on Monday, joining Britain and Canada in a coordinated effort to tighten the screws around the country's suspected nuclear weapons program.
Britain cut all financial ties Monday with Iran over concerns about Iran's nuclear program, the first time it has ever cut an entire country's banking sector off from British finance, the British Treasury announced.
The United States will name Iran, as well as its Central Bank, as a "primary money laundering concern" Monday, but will not place sanctions directly on the bank, a senior Treasury Department official said.
The U.N. nuclear watchdog's governing council adopted a resolution Friday expressing "deep and increasing concern about the unresolved issues regarding the Iranian nuclear program."
The Obama administration plans to impose fresh sanctions against Iran's petrochemical industry, diplomatic sources familiar with the plans said Friday.
A former NATO supreme allied commander says the Iranian regime seems determined to move ahead with their nuclear program.
For the better part of a decade, the world has seen an episodic stream of predictions that Iran was on the cusp of building a nuclear weapon and that an Israeli or American pre-emptive military strike was imminent. Alarming forecasts are again gaining currency because of a new assessment issued by the United Nations nuclear watchdog: The International Atomic Energy Agency reported last week that Iran appears to be trying to develop a nuclear weapon.
Fareed's take on Iran's nuclear program.
A forthcoming report from the U.N. nuclear watchdog is expected to shed light on how advanced Iran's nuclear program is.
A new International Atomic Energy Agency report on Iran's nuclear activities brings efforts to resolve the crisis to a very "dangerous turning point," an expert on the region said Wednesday.
World powers expressed alarm Wednesday about a critical report documenting Iran's progress toward making a nuclear bomb, with the British foreign secretary warning that his nation would take strong measures if the Islamic republic did not change direction.
CNN's Max Foster talks to the Iranian ambassador to the IAEA who defends his country's nuclear aspirations.
The International Atomic Energy Agency issued a critical report Tuesday saying that it has "serious concerns" about Iran's nuclear program and has obtained "credible" information that the Islamic republic may be developing nuclear weapons.
CNN's Jill Dougherty reports on the IAEA report that shows Iran is capable of building nuclear weapon.
An International Atomic Energy Agency report to be released this week will say that Iran has mastered the critical steps necessary to design and construct a nuclear weapon, Western diplomats briefed on the report told CNN Monday.
The upcoming report by the International Atomic Energy Agency will make the most detailed charges to date that Iran's nuclear program is geared toward weapons development and military use, several Western diplomats briefed on the report told CNN.
The upcoming report by the IAEA will make the case that Iran's nuclear program is geared toward weapons development.
China's Foreign Ministry weighed in on the widespread anxiety over Iran's nuclear program on Friday, urging Iran to be flexible with the U.N. nuclear agency but staunchly deploring force amid talk of strikes against the country.
Iran's efforts to develop its nuclear program have been stymied by a raft of challenges from international sanctions and set back by the 2010 Stuxnet cyberattack, two new reports from a Washington nuclear think tank conclude.
New imagery posted on Google Earth shows evidence Iran continues to build out its nuclear sites, according to a group focused on stopping the spread of nuclear weapons and related technology.
Washington greeted this week's inauguration of Iran's first nuclear power plant with a chorus of concerns about the Iranian threat and the prospects of proliferation across the Middle East. This alarmism is neither unexpected nor unjustified. However in the case of the Bushehr reactor, it is somewhat misdirected.
Iran plans a ceremony to launch a controversial nuclear power plant Monday, the country's government-backed Press TV reported, making it the first nation in the Middle East to put a civilian nuclear power plant online.
Iran plans a ceremony to launch a controversial nuclear power plant Monday, the country's government-backed Press TV reported, making it the first nation in the Middle East to put a civilian nuclear power plant online.
Iran says its Bushehr nuclear power plant is now online, making it the first Middle Eastern country to produce commercial electricity from atomic reactors.
An International Atomic Energy Agency report, dated and leaked Friday, said Iran continues to defy U.N. resolutions aimed at curbing its nuclear program and cited "increasing" concerns it may be developing nuclear weapons
The French Foreign Ministry condemned Tuesday the Iranian government's announcement that it was installing a new generation of centrifuges in its nuclear facilities, describing it as "a new wave of provocation" that flouts United Nations resolutions.
Consider this: There are about 24,000 nuclear weapons in the world. It's a sobering thought. When I was confronted by the magnitude of this, I found myself awestruck.
Iran has been carrying out covert tests of missiles capable of delivering a nuclear payload, UK Foreign Secretary William Hague said Wednesday, in contravention of a U.N. resolution.
2010: CNN's Joe Johns talks to David Sanger of the New York Times about a WikiLeaks dump.
The United Nations' nuclear watchdog agency Thursday found that Syria built a covert nuclear reactor and failed to comply with demands for information on the facility.
Two decades after helping to design the first atomic bomb, Robert Oppenheimer, director of the Manhattan Project, was asked to describe how he felt after the bomb's first test. "If the radiance of a thousand suns were to burst at once into the sky," he quoted from the Hindu scripture, Bhagavad Gita, "that would be like the splendor of the mighty one. Now I am become Death, destroyer of worlds."
Former trucker John Coster-Mullen deciphers the top-secret inner workings of the first atomic bombs.
In Hiroshima, recent images of razed villages and burning shells of buildings in Japan's quake-damaged northeast are recalling painful memories of a time sixty-five years ago when an atomic bomb created similar effects in their town.
Japanese Cabinet secretary says radiation is at a level that "can impact human health" at a nuclear power plant.
In a possible setback to its nuclear program, Iran is unloading fuel assemblies from the reactor at a plant already plagued by delays, according to a report issued Friday by the global nuclear watchdog agency.
Additional information received recently by a United Nations watchdog group raises new concerns about the intent of Iran's nuclear program.
CNN's Jonathan Mann has an exclusive interview with Iran's Chief Nuclear Negotiator Saeed Jalili about the talks.
The strategic calculus for dealing with Iran's nuclear program has shifted dramatically in the past month.
Secretary of Defense Robert Gates said Tuesday that North Korea is becoming a direct threat to the United States, asserting that the rogue Communist regime is within five years of developing intercontinental ballistic missiles.
The U.S. Energy Department announced Friday the shipment of 50 kilograms -- or 111 pounds -- of highly enriched uranium from Ukraine to Russia.
Senators John Kerry and Richard Lugar react to the ratification of the nuclear arms control treaty with Russia.
The lower house of the Russian parliament gave preliminary approval Friday to START, a nuclear arms reduction treaty between Russia and the United States.
Russian President Dmitry Medvedev on Thursday congratulated President Barack Obama on the Senate's approval of a new nuclear arms control treaty between the countries, the White House said.
The Senate voted Wednesday to approve the new nuclear arms control treaty with Russia -- a major foreign policy victory for the Obama administration near the end of the lame-duck session of Congress.
The Senate ratifies the START treaty which will allow inspections to resume and weapons arsenals to be limited.
Republican Sen. Lindsey Graham of South Carolina expresses irritation at the way the lame duck Congress is working.
Last week, South Carolina Sen. Jim DeMint argued that the Senate should not approve the new START agreement with Russia because it might force senators to work over Christmas, thus showing insensitivity to the Christian faithful.
The new nuclear arms control pact with Russia cleared a key procedural hurdle Tuesday as the Senate voted to cut off debate on the measure.
One of the nightmare scenarios of the 21st century is a "rogue state" or terror group getting its hands on nuclear material that could be sufficiently enriched to make a weapon. And diplomatic cables obtained by WikiLeaks show that from central Africa to central Asia, it's a constant preoccupation of U.S. officials.
CNN's Wolf Blitzer reports on the latest meeting Gov. Bill Richardson had with North Korean officials.
Senate Republicans mounted a counter-attack Sunday against ratifying a new nuclear arms treaty with Russia this year, trying to put off a vote that Democrats say they will win if it is held.
Iran and international powers finished two days of talks centered on Iran's controversial nuclear program Tuesday and both sides agreed to meet again in Turkey next month.
CNN's Matthew Chance ask Iran's top nuclear official if Iran is ready to freeze its uranium enrichment activities.
Iranian officials have been talking with the United States and other countries trying to put the brakes on Tehran's nuclear program. On Sunday, the head of Iran's Atomic Energy Organization said Iran is now producing its own yellowcake and is self-sufficient in the nuclear fuel cycle.
Iran now produces everything it needs for the nuclear fuel cycle, making its nuclear program self-sufficient, the head of the country's Atomic Energy Organization told state media Sunday.
Iran blasted a nuclear fuel bank approved by the world's main nuclear watchdog agency, saying the idea amounts to "nuclear apartheid."
A proposal to reduce nuclear weapons highlighted the debate within the German government about when and how to get rid of nuclear weapons on its soil, a new WikiLeaks document shows.
Iranian President Mahmoud Ahmadinejad said Tuesday that Iran has agreed to another round of nuclear talks with the United States and other nations.
North Korea's latest revelations about its uranium-enrichment program confirm the country's long-term deceit, U.S. and South Korean diplomats said Monday.
Has North Korea succeeded in developing an advanced uranium enriched nuclear facility? CNN's Jill Dougherty reports.
A U.S. State Department team arrived in South Korea on Monday in response to a U.S. scientist's report that North Korea has a new uranium enrichment facility.
The latest satellite imagery taken of North Korea indicates the secretive country might be further pursuing its nuclear program.
In a bid to ratify the new nuclear missile agreement with Russia during the lame-duck session of Congress, the Obama administration is offering to spend $4 billion more over five years for nuclear weapons modernization.
President Barack Obama on Sunday reiterated his commitment to getting the U.S. Senate to approve the New START treaty with Russia by year's end, saying he felt "reasonably good about our prospects" for the goal.
With the Senate set to begin its lame-duck session Monday, the Obama administration is telling members it's time for them to vote on the New START nuclear arms control treaty with Russia.
A malfunctioning launch control center for a portion of the nation's nuclear missiles remained offline Wednesday as investigations continued into a weekend computer problem that disrupted communications with more than 10 percent of America's land-based nuclear missiles.
The Air Force lost partial communications with 50 nuclear missiles for almost an hour last weekend, an Air Force spokesman said Tuesday.
A major part of a nuclear arsenal lost power for an hour at an Air Force base in Wyoming. CNN's Chris Lawrence reports.
Iran's foreign minister said nuclear talks with world powers could take place in mid-November, Iranian news agencies said Saturday.
The architect of North Korea's nuclear arms program has been promoted to vice premier of the country's Cabinet, state-run media said on Thursday.
The United Nations nuclear watchdog agency begins its annual meeting Monday, where it looks set to wrestle with how to deal with Iran, North Korea, Syria and Israel.
Supporters of an Iranian opposition group announced Thursday that they have "exclusive" details on a major top-secret strategic nuclear enrichment site buried deep in a mountain northwest of Tehran, but U.S. government officials and nuclear experts are not convinced.
South Korea on Wednesday announced sanctions against Iran -- including government scrutiny of most financial transactions involving the country -- as part of global efforts to quash Tehran's suspected nuclear program.
In defiance of U.N. Security Council resolutions, Iran continues its uranium enrichment activities, according to a report by the International Atomic Energy Agency released Monday.
Nuclear fuel is scheduled to arrive at Iran's first atomic energy plant Saturday, a development being watched by Western nations.
Russia's top nuclear official Thursday called the pending supply of nuclear fuel to Iran's first atomic energy plant "an event of crucial importance" that proves that "Russia always fulfills its (international) obligations."
Iran plans to begin construction of 10 uranium enrichment centers across the country by next year, state-run media is quoting Iran's nuclear chief as saying.
A top Iranian lawmaker defended his nation's right to enrich uranium in the future after Iran and Russia confirmed that Russians will start loading a nuclear reactor in the Islamic republic with fuel next week, Iranian media reported Saturday.
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