UN biodiversity summit opens under guerrilla threat in Colombia

UN Secretary General Antonio Guterres will make a video address to guests gathered for the event attended by Colombian President Gustavo Petro, who on Friday said he was "nervous" about security. The high-stakes UN biodiversity gathering officially opens Monday under the protection of thousands of Colombian police and soldiers, aided by UN and US security personnel. Armed police could be seen patrolling the city center, conference venue and airport Sunday. About 12,000 delegates from nearly 200 countries...