On a day when Minnesota is experiencing its first deep freeze of the season, a federal judge has decided to unfreeze the UnitedHealth stock options held by former CEO William McGuire, the Associated Press reports. The action means McGuire can exercise any options not tied to pending legal settlements related to the backdating scandal that forced him to resign. A year ago, McGuire said the options were worth $910 million, but the company’s stock value has fallen since then.