Big city mayors tackle slavery, climate change at Vatican

Harrowing accounts of girls forced into prostitution and modern slavery opened a two-day conference at the Vatican Tuesday, at which mayors from around the world testified to their efforts to fight forced labour and global warming. "It's not possible that it still exists, that we remain blind" to the issue of modern slavery, Ana Laura Perez Jaimes, who spent five years chained up and forced to work 20 hours a day in Mexico, told the meeting organised by Pope Francis. Around 60 may