This week the US moved to sanction what's believed to be Indonesia's most dangerous terrorist organisation as concern continues to grow over the threat of Islamic State in Southeast Asia. The US State Department has named the little known group JAD as a terrorist organisation and has also pinpointed two Indonesian militants behind the terrorist attack in Jakarta almost a year ago. Indonesia is stepping up efforts to stop its citizens travelling to Syria but there's also a fear with the journey becoming more difficult they could choose to launch attacks at home instead.