FILE - In this Oct. 4, 2011 file photo, passenger Don Heim, right, of Alpharetta, Ga., is briefed by Transportation Security Administration trainer Byron Gibson before going through a new expedited security line at Hartsfield-Jackson International Airport in Atlanta. The news that a man flew from Liberia to the U.S. after exposure to Ebola, and wound up in a hospital isolation ward, has led to calls for tougher measures to protect Americans, such as a ban on flights from countries hit by the epidemic. Federal health officials and airlines have dismissed any risk to passengers who flew with the man last month and say they are protecting travelers by screening passengers and wiping down airplane cabins nightly. (AP Photo/David Goldman)
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