The Kampung Melayu bombing represents a failure of our intelligence system. Terror attacks are not like unpredictable earthquakes. Like the recent Kampung Melayu bombing that killed three police officers and wounded 11 others, they were perpetrated by members of a network of lunatics whose connections could be traced and tracked down.

In December 2016, the special anti-terror Detachment 88 caught Dian Yulia Novi, who planned to blow herself up