Security Scare Forces Flight Evacuation in Philly

Authorities are looking for someone who may have improperly gained access to the tarmac at Philadelphia's airport, prompting passengers to be removed from a US Airways flight to Bermuda. An FBI spokesman says the incident doesn't appear to have any connection to terrorism. Police say initial reports from the scene indicate a person lacking a security badge was helping load the plane. When co-workers approached him, he left the scene and remains unaccounted for. Authorities swept the aircraft for explosives and later cleared it for takeoff. (More Philadelphia stories.)