News bites: Airline stocks take off

Your morning transportation speed-read:

Shares of stock in airlines were rose quickly after the Department of Justice agreed to allow US Airways and American Airlines to merge.

Officials at Chicago O'Hare International Airport are looking for a woman who left an alligator at the airport's subway station.

Closer to the capital, Metropolitan Washington Airports Authority (MWAA) are worried about drivers skipping out on paying to use the Dulles International Airport's toll road.

A train on San Francisco's Muni Metro light rail system left a station without a driver.