Indonesian markets were shaken by the almost simultaneous bomb blasts on Friday morning at the JW Marriott and Ritz-Carlton hotels in central Jakarta, which killed eight people and injured at least 61 others. The bombings ended a period of nearly four years without a major terrorist attack in the country, but during that time tourists and foreign businessmen had become accustomed to having their cars inspected at roadblocks and their bodies and belongings scanned before entering the luxury hotels in the southern district of the capital.
Those measures now seem to have provided only a false sense of security for foreign investors and dealmakers who routinely stay at and arrange meetings at these hotels. However,...