For the six months following the October 2002 bomb attack in Legian, Bali, 32-year-old Ngurah Amon had difficulty sleeping. At the time of the explosion this security guard was close to the scene, and as a consequence lost hearing in both ears and suffered damage to his left eye. But it wasn’t the physical damage that caused his loss of sleep, but rather his constantly being reminded of the terrifying midnight. For months, Ngurah was p