Two workers were injured today when a radio tower collapsed in metro Orlando, Fla., after boom truck collided with one of the tower’s guy wires, casing it to snap, television station WESH reported. One of the workers was flown to a local hospital with critical injuries, the report said. The tower is used by Rural-Metro Ambulance service, but communications were not interrupted because transmissions were switched to a frequency operated by the Orange County Sheriff’s Department.