The suspected terrorist known as YLK has been known to ISD since the early 2000s for a history of terrorism-related activities. SINGAPORE: Singapore authorities are "coordinating closely" with their Indonesian counterparts over the recent arrest of a suspected terrorist who plotted to attack the Singapore Exchange (SGX) building in 2014, the Internal Security Department (ISD) said on Wednesday (Sep 4). In response to CNA's queries, ISD said it is aware of the arrest of a man referred to in some