FILE – In this Oct. 30, 2014, file photo, a TSA officer, left, checks a passenger’s ticket, boarding pass and passport as part of security screening at John F. Kennedy International Airport in New York. A court challenge over the difficulty for airline passengers to remove their names from the U.S. governments no-fly list is taking an unexpected twist, now focusing on the mysterious ways federal agents add passenger names to the list in the first place. (AP Photo/Mark Lennihan, File)