INITIALLY Irma Winda Lubis, 40, had no suspicions when she picked up Muhammad Abrary Pulungan, her son, a pupil at State Primary School 06, in South Jakarta. On that May 10, Abrary had just finished taking part in the first day of the national exams.

“Were you able to answer all the questions?” Irma asked her oldest son, usually called Abang, while walking back to the parking lot. “God willing, I did, Mum,” the weary boy answered, as