THE tragedy on Black Friday was an act of terror that shook the world, going beyond Jakarta and even President Susilo Bambang Yudhoyono personally. Two explosions in two minutes at the JW Marriott and Ritz-Carlton hotels on Friday morning killed nine people and injured 61. It was a stark warning to the government: the war on terror is not yet over.

Bombings have haunted this nation for the past nine years: there have been 10 since 2000. The larg