Airport Screening Program

In this Thursday, Nov. 18, 2010 file photo, TSA officials check check passengers entering a security checkpoint at Hartsfield-Jackson Atlanta International Airport in Atlanta. A federal probe of a Transportation Security Administration program to screen suspicious behavior of passengers at airports suggests the effort, which has cost almost $1 billion since 2007, has not been proven effective, according to a report released Wednesday, Nov. 13, 2013. (AP Photo/David Goldman, File)