Pope Francis is held by the stairs as he boards in the aircraft departing from Eleftherios Venizelos International Airport in Athens, Greece, Monday, Dec. 6, 2021. Francis' five-day trip to Cyprus and Greece has been dominated by the migrant issue and Francis' call for European countries to stop building walls, stoking fears and shutting out "those in greater need who knock at our door." (AP Photo/Yorgos Karahalis)