New York Times: Under a bright sky here, a convoy of heavy equipment rolled onto the bed of the Penobscot River on Monday to smash the Great Works Dam, a barrier that has blocked the river for nearly two centuries. Before the destruction began, a tribal elder from the Penobscot Indian Nation used an eagle wing to fan smoke from a smoldering smudge of sage, tobacco and sweet grass over the crowd that had gathered to watch. “Today signifies the most important conservation project in our 10,000-year history on this…