A week ago an unsettling incident occurred in Assam that went largely unnoticed in the Indian media. Over a thousand suspected illegal migrants crossed the Dhansiri river and, with impunity, took over parts of Orang National Park in Darrang district in the early hours of May 6. They came from the innumerable chars (riverine islands) that dot the Brahmaputra river. They did not come empty-handed – they brought along building materials and cattle. They apparently had come to stay. For good. By the...