The May 13 attack, which killed 13 churchgoers and a security officer and took place days before the start of Ramadan, was the deadliest terrorist attack in Indonesia since a 2002 bombing in Bali. Then, the target was foreign tourists. This time it was Indonesian Christians, a minority who make up about 10 percent of the population, according to the 2010 census. Many feared that the attacks were a sign that the country's religious diversity is under threat.
