THE residents of Sembulang village, Batam, Riau Islands, had felt a tense atmosphere over the previous 10 days. They are always suspicious when any outside cars or vehicles enter their area. Sembulang, one of the oldest neighborhoods on Rempang Island, is now guarded by dozens of police and soldiers occupying the subdistrict office. “The atmosphere here is like a military operation. I have never felt anything like this in my 30 years h