From CNN Triad attacks. Prostitute calling cards. Illicit money flows. This is the dark underbelly of Macau — Asia’s gambling capital. The only Chinese territory where casinos are permitted, the city has transformed itself in little more than a decade from a sleepy backwater to a neon-lit monument to China’s passion for gambling. Gambling revenues in the city surpassed Las Vegas in 2006 and are now six times greater. But the former Portuguese colony’s dramatic rise has come at a cost, with many in Macau questioning whether growth has been too fast and furious. “You really don’t know whether society…