HUNDREDS of PT Angkasa Pura II (airport management) employees and departing passengers at Soekarno-Hatta Airport, Cengkareng, had just finished their Friday prayers two weeks ago. Some of the state company personnel were also still sitting at the mosque near the international airport. Suddenly, the lights went out for a while.

Angkasa Pura technicians moved fast. They immediately checked the cause. It turned out to have resulted from a short cir