President Obama's stunning disclosure puts pressure on Russia to reciprocate. But Moscow relies much more heavily on its nuclear weapons arsenal for security and regional power.
The review of the NPT – the nuclear Non-Proliferation Treaty – in New York this month pits Iran against Western powers suspicious of Tehran's nuclear ambitions. Iran's fight for nuclear 'rights' resonates with many countries around the world.
The Ahmadinejad speech at the United Nations conference on Nuclear Non-proliferation Treaty (NPT) was aimed at Israel and the US. To achieve a world free of nuclear weapons, Obama will first need to deal with Iran and bring peace to the Middle East.
The Non-Proliferation Treaty was designed to limit the acquisition of nuclear weapons to five countries who already had them. But now four more states have joined the nuclear club – an 'erosion' of the treaty that could spell its doom.
The guilty verdict announced Monday for Pakistani gunman Mohammed Ajmal Amir Kasab closed one chapter of the 2008 Mumbai attacks. But the impact on counterterrorism policy is still slowly unfolding.
Secretary Clinton will declare the 40 year-old Nuclear Non-Proliferation Treaty threatened by Iran and North Korea, while Iran's Ahmadinejad is expected to criticize world powers for failing at disarmament.
The Nuclear Non-Proliferation Treaty conference opens at the United Nations on Monday. Reducing nuclear weapons is a key issue for President Obama, but there are many challenges.
A joint project between NASA and European Space Agency would send a mole-like thermal drill designed to bore into the icy surface of Jupiter's moon Europa in an attempt to search for signs of extraterrestrial life.
Sculptures at St. Isaak's Cathedral in St. Petersburg, Russia, are silhouetted by the rising full moon late Wednesday.