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Obama says nuclear threat rising Obama says nuclear threat rising
(20 minutes later)
US President Barack Obama has warned a gathering of world leaders in Washington of an increased risk of a nuclear attack by terrorists.US President Barack Obama has warned a gathering of world leaders in Washington of an increased risk of a nuclear attack by terrorists.
Mr Obama said the risk of a nuclear attack had "gone up" as groups such as al-Qaeda tried to acquire material for a nuclear weapon.Mr Obama said the risk of a nuclear attack had "gone up" as groups such as al-Qaeda tried to acquire material for a nuclear weapon.
His comments marked the formal opening of a major summit on nuclear security.His comments marked the formal opening of a major summit on nuclear security.
Mr Obama urged leaders not merely to talk, but to act to prevent nuclear material falling into the wrong hands.Mr Obama urged leaders not merely to talk, but to act to prevent nuclear material falling into the wrong hands.
Terrorist networks such as al-Qaeda have tried to acquire the material for a nuclear weapon and, if they ever succeed, they would surely use it Barack Obama
He said that since the end of the Cold War the risk of nations going to war with nuclear weapons had lessened.He said that since the end of the Cold War the risk of nations going to war with nuclear weapons had lessened.
But in "a cruel irony of history", he said that "the risk of a nuclear attack has gone up".But in "a cruel irony of history", he said that "the risk of a nuclear attack has gone up".
"For the sake of our common security, for the sake of our survival, we cannot drift."For the sake of our common security, for the sake of our survival, we cannot drift.
"We need a new manner of thinking, and action. That is the challenge before us," Mr Obama told the assembled leaders."We need a new manner of thinking, and action. That is the challenge before us," Mr Obama told the assembled leaders.
He warned that a small quantity of plutonium the size of an apple could wreak carnage.
"Terrorist networks such as al-Qaeda have tried to acquire the material for a nuclear weapon and, if they ever succeed, they would surely use it," he said.
"Were they to do so, it would be a catastrophe for the world, causing extraordinary loss of life and striking a major blow at global peace and stability."
Co-ordinated effort
Leaders at the summit are expected to issue a joint statement later pledging a co-ordinated effort to secure nuclear stockpiles.Leaders at the summit are expected to issue a joint statement later pledging a co-ordinated effort to secure nuclear stockpiles.
Mr Obama also announced the next nuclear security summit would be held in South Korea in 2012.Mr Obama also announced the next nuclear security summit would be held in South Korea in 2012.
Iran's President Ahmadinejad has called a rival nuclear summit
"This reflects South Korea's leadership regionally and globally," he said.
On the summit's sidelines, German Chancellor Angela Merkel said she was "very content with the progress" made.
"This is a first, important step to react to new, so far unknown threats," she said, according to the German DAPD news agency.
On Monday, the US welcomed a pledge by Ukraine to eliminate its stockpile of highly enriched uranium by 2012.On Monday, the US welcomed a pledge by Ukraine to eliminate its stockpile of highly enriched uranium by 2012.
However, France's leader stressed his country could not give up its own nuclear weapons.
New nuclear policy
The two-day summit is the biggest international meeting hosted by the US since 1945.The two-day summit is the biggest international meeting hosted by the US since 1945.
It is taking place without representatives of Iran and North Korea, neither of whom were invited by the US because of the disputes over their nuclear programmes.It is taking place without representatives of Iran and North Korea, neither of whom were invited by the US because of the disputes over their nuclear programmes.
Iran's President Ahmadinejad has called a rival nuclear summit
In a defiant move, Iran has announced that it will hold its own nuclear summit in Tehran this weekend with the foreign ministers of 15 countries.In a defiant move, Iran has announced that it will hold its own nuclear summit in Tehran this weekend with the foreign ministers of 15 countries.
Israeli Prime Minister Benjamin Netanyahu dropped plans to attend the Washington summit, reportedly because of concern that Muslim states planned to press for Israel to open its own nuclear facilities to international inspection.Israeli Prime Minister Benjamin Netanyahu dropped plans to attend the Washington summit, reportedly because of concern that Muslim states planned to press for Israel to open its own nuclear facilities to international inspection.
It is estimated there are about 1,600 tonnes of highly enriched uranium in the world - the type used in nuclear weapons.It is estimated there are about 1,600 tonnes of highly enriched uranium in the world - the type used in nuclear weapons.
Experts agree that virtually all of it is held by the acknowledged nuclear-weapons states, most of it in Russia.Experts agree that virtually all of it is held by the acknowledged nuclear-weapons states, most of it in Russia.
Last week, the US and Russia signed a new Strategic Arms Reduction Treaty, reducing each country's deployed nuclear arsenal to 1,550 weapons.Last week, the US and Russia signed a new Strategic Arms Reduction Treaty, reducing each country's deployed nuclear arsenal to 1,550 weapons.
Mr Obama has also approved a new nuclear policy for the US, saying he plans to cut the nuclear arsenal, refrain from nuclear tests and not use nuclear weapons against countries that do not have them.Mr Obama has also approved a new nuclear policy for the US, saying he plans to cut the nuclear arsenal, refrain from nuclear tests and not use nuclear weapons against countries that do not have them.