COLOMBO At the Harbour Room, a shabby restaurant in a British colonial-era hotel in the Sri Lankan capital, diners tuck into a standard Asian buffet and listen to the soporific tones of a pianist. The main draw is the seating near the bay windows, which offer panoramic views of the port of Colombo. These days, the restaurant provides a vantage point for watching the government's tricky geopolitical balancing act play out in South Asia's busiest harbor.
