I’ve been waiting for a good example of the application of Deng Xiao Ping’s approach to policy: cross the river by feeling the stones. Fine tune policy actions based on feedback. One has come up: in Sri Lanka of all places. The department of wildlife said sightings of large mammals such as leopard are usually conveyed to other vehicles using mobile phones inside the Yala park where wild animals had been run over by speeding visitors. “When a leopard or other interesting sighting is made by one vehicle, the news is rapidly transmitted by means of mobile phones, attracting large numbers of vehicles to the site, causing severe congestion and spoiling the experience for everyone,” the department said.