There appears no end in sight for when Dick Cheney, a rare former vice president with Secret Service protection, will lose his security detail. Whispers has learned that the political battler's Secret Service protection has been extended, though there were no details on the length. We don't know why President Obama OK'd the extension, which must be approved by the commander in chief because former veeps typically don't get any Secret Service security after leaving office. But indications are that the threats against Cheney, who's working on his biography at his homes in Virginia and Maryland, haven't lessened since his term expired.