BANGOR, Maine -- A trans-Atlantic flight from Manchester, England, en route to Chicago was diverted to the Bangor International Airport on Friday, officials said. American Airlines Flight 55, a Boeing 763, was diverted for security reasons, said Arlene Murray, New England regional spokeswoman for the Federal Aviation Administration. She declined to elaborate. Police confirmed that there was an incident at the airport but provided no details. Federal agents were at the airport, as well. FBI spokeswoman Gail Marcinkiewicz declined to discuss the nature of the problem. "We're responding to determine the cause of the diversion. It's going to take a...