Global Nuclear Threat ‘Highest Since Cuban Missile Crisis’

World leaders meeting at the United Nations General Assembly, which begins Tuesday in New York, must make nuclear arms control a priority, according to a group of over 100 political, military and diplomatic figures. They have issued a statement warning that the risks of nuclear accident, misjudgment or miscalculation have not been higher since the Cuban Missile Crisis. Henry Ridgwell reports from London.

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