LIKE a tree, today’s Islamic State of Indonesia (NII) has both large and small branches. Its trunk is centered at the Al-Zaytun Islamic Pesantren or Boarding School. But its branches and sub-branches can be found in many locations, splintered away from the main body. Some of them are full-fledged splinter groups. In Haurgeulis, Indramayu—not far from the Ma’had Al-Zaytun school—scores of families have quietly formed their own groups, se