Pope Francis arrives to welcome Republic of Congo President Denis Sassou N'Guesso on the occasion of their private audience in the pope's library at the Vatican, Monday, Dec. 9, 2013. (AP Photo/Tony Gentile, pool)

Photo by: Tony Gentile

Pope Francis arrives to welcome Republic of Congo President Denis Sassou N'Guesso on the occasion of their private audience in the pope's library at the Vatican, Monday, Dec. 9, 2013. (AP Photo/Tony Gentile, pool)