Poppy farmer Santiago Sanchez stands next to opium paste lying on the table in Santa Cruz Yucucani in the Sierra Madre del Sur, in the southern state of Guerrero, Mexico, August 18, 2018. "We can't keep living like this," said Sanchez, who is a local leader in the remote Mixtec Indian village of Juquila Yucucani, where hundreds of poppy farmers have seen already meagre incomes shrivel. "We can barely afford our food." REUTERS/Carlos Jasso SEARCH "JASSO OPIUM" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.