On the Sunday, the collected mushrooms are on display (groups can only pick one of each species to insure their long-term survival) and local experts give talks on fungi varieties.

BBC: In Oaxaca, a community unchanged

The group ran support sessions and had talks from experts on issues such as eating disorders.

BBC: News | Health | Bringing up Edward

Negotiating with traffickers played a role in Colombia, where religious figures and former guerillas led the talks, experts said.

CNN: The Mexico drug war: Bodies for billions