Why Hambali, ‘Southeast Asia’s Osama bin Laden’ detained at Guantanamo, is not just an artefact of history

• The alleged mastermind of the Bali bombings put Southeast Asia’s violent extremists on a collision course with the US and its allies
• Two decades on, his actions continue to reverberate – not least in the Jemaah Islamiah-linked schools that are the ‘Ivy League’ of Indonesia’s jihadi universe