What makes an intergovernmental forum emerge from the shadows?

These are called intergovernmental forums. They operate outside the traditional EU framework and have raised serious questions about legitimacy and transparency. But over time these disparate forums have slowly and quietly crept out of the shadows and into public life, becoming noisy actors on the European stage. So why are groups that were designed to stay backstage becoming so conspicuous? One man who might know the answer is Lewis Miller, a British researcher in the department of political and social sciences.