FILE PHOTO: Polish Airlines LOT Embraer ERJ-195LR aircraft taxis at the Chopin International Airport in Warsaw, Poland May 17, 2016. REUTERS/Kacper Pempel/File Photo
FILE PHOTO: Polish Airlines LOT Embraer ERJ-195LR aircraft taxis at the Chopin International Airport in Warsaw, Poland May 17, 2016. REUTERS/Kacper Pempel/File Photo