Colorado's troubled high-risk health-insurance pool has asked the federal government for nearly $15 million more than planned after running up early claims that are twice the national average. High-risk, uninsurable patients were the heart of emotional pleas for national health-care reform in 2010, and Colorado got $90 million of a $5 billion federal pool to help them. The allocation was meant to last until 2014, when insurers have to cover everyone regardless of condition.