Pleasance Dome, EdinburghMiguel Hernando Torres Umba takes us into Colombia's heart of darkness to reveal the human cost of the west's most popular illegal drugOne-person shows that have both a human and a political edge are a tricky tightrope to walk, and few stories are as steeped in the politics of humanity as that of cocaine and its effect on the lives of Colombian people. Blackboard Theatre's Stardust, which won…
