The Nuclear Non-Proliferation Treaty was created 50 years ago and by many measures, it has been a success, but experts warn efforts towards nuclear disarmament are slowing. 
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Nuclear disarmament: 50 years since landmark global deal
The Nuclear Non-Proliferation Treaty was created 50 years ago and by many measures, it has been a success, but experts warn efforts towards nuclear disarmament are slowing.www.aljazeera.com
