PolitickerNY has a report out Tuesday that Seamus, the dog Romney famously put on the roof of the car when the family drove to Canada in 1983, may have actually run away once the Romneys reached the Great White North. As any Gail Collins readers will know by now, a 2004 Boston Globe story revealed that Mitt Romney strapped his dog's crate to the roof of the family car, terrifying the pooch in the process. Though it was intended as an illustration of Romney's quirky crisis-management, pet lovers everywhere have let it live on as evidence of candidate's cruelty. PolitckerNY's...