This is Barack Obama charm offensive of work, 46 countries, 36 world leaders, and the US president appealing for their help. The words whispered in their ears of the family photo, the pressure applied on the issue. The US believes it's one of the biggest threats to global security. And Obama believes many of these world leaders don't take it seriously enough.
It's estimated there is enough so called loose nuclear material floating around the globe to make 120,000 unclear weapons in all military bases, power stations, universities. And the US believes not enough is being done to make it secure. It worries Washington enough to convene the biggest summit the US has seen since 1945. And Obama opened the meeting with a warning for the world. </
