Indonesia caught cell leader Sunday with a tip from Singapore officials. Terrorists, like smugglers and pirates, tend to congregate in geographical backwaters. The arrest of an alleged terrorist leader Sunday night on Indonesia’s Bintan island near Singapore is shedding light on how easily local maritime borders have been exploited by groups tied to Al Qaeda – and the progress that Southeast Asia’s governments here are making in bringing them under control. Mas Selamat Kastari was caught more than a year after he went underground with the other members of his five-man Jemaah Islamiyah (JI) cell. The JI has been blamed for the Bali nightclub attacks that killed 190 people last August and a string of lesser attacks in Southeast Asia dating back to 1999. Full Story