VATICAN CITY, VATICAN - MARCH 27:  US President Barack Obama arrives in a car at the San Damaso courtyard for a meeting with Pope Francis on March 27, 2014 in Vatican City, Vatican. Obama is attending his first audience with Pope Francis which is also his second time being received at the Vatican, after an audience with Pope Benedict XVI on July 10, 2009.  Barack Obama is the ninth US President to make an official visit to the Vatican. President Woodrow Wilson was the first US President who was received by Pope Benedict XV after the end of the First World War.  (Photo by Franco Origlia/Getty Images)