The project to promote the golden rule has attracted 100,000 visitors from 181 nations in its first week.
The three-day meeting, which runs through Friday, has been cast as 'historic' but also criticized as a PR stunt.
The record shows that some radicals can be persuaded to give up the gun when inducements and local conditions are right. The Pentagon recently spent $4.5 million to find out more.
What happens when ordinary people decide to pay it forward? Extraordinary change. See how individuals are making a difference...
Mae Azango has gone undercover to report on female circumcision, a rite of the Sande society in Liberia that is performed on young girls.
Mae Azango exposed a secret ritual in Liberia, putting her life in danger
When journalist Mae Azango wrote about a secret women's circumcision ritual in Liberia, she received death threats.
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