A half-century after at least half a million people were killed in a brutal pogrom against suspected communists and communist sympathizers, Indonesia is still unsure about whether it is ready to glance at — let alone actually face up to — one of the darkest chapters in its history. On Monday, Indonesia’s chief security minister Luhut Panjaitan will open a two-day, government-backed national symposium in Jakarta on the 1965–66 killings.