Speaking to hundreds of Samarinda mosque caretakers, Kurnia Widodo spoke about his experience. "I assembled a bomb in a mosque, and people didn't even realize it," he said at the ballroom of Hotel Bumi Senyiur last March.

Kurnia was one of the speakers in a seminar entitled Protect Our Mosques from the Influence of Terrorism and Radicalism, hosted by the National Counter-Terrorism Agency (BNPT). Its participants were mosque caretakers from East Kal