News bites: Cracked up

Your morning transportation speed-read:

Cold weather is causing cracked rails on Washington, D.C.'s MetroRail subway system.

The Federal Aviation Administration (FAA) is investigating the filming of an airplane stunt at a Texas airport this week.

A pair of airplanes at Washington, D.C.'s Dulles International Airport clipped each other's wings.

Atlantic City International Airport has been named the most expensive airport to fly out of in the U.S.