OLIVIA WILSON: Slumped in the darkness of a narrow corridor lies a pig with hopeless eyes. Each strand of hair is defined, and every line, wrinkle and crease on its body seems to express the cruel conditions of its life. The photo, by Finnish photojournalist Kristo Muurimaa, is just one of the many shocking images … Continue reading THE HIDDEN: ‘Some of the darkest places in the world’