Priests walk down Benjamin Franklin Parkway as they prepare to deliver communion to spectators during the papal Mass at the World Meeting of Families on September 27, 2015 in Philadelphia, Pennsylvania. Pope Francis wrapped up his United States tour with the World Meeting of Families Papal Mass during on the Benjamin Franklin Parkway. (Photo by Justin Sullivan/Getty Images)
Pope Francis Celebrates Mass On Philadelphia's Benjamin Franklin Parkway
A spectator receives communion during the papal Mass at the World Meeting of Families on September 27, 2015 in Philadelphia, Pennsylvania. Pope Francis wrapped up his United States tour with the World Meeting of Families Papal Mass during on the Benjamin Franklin Parkway. (Photo by Justin Sullivan/Getty Images)
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Pope Francis reaches to bless a little girl as he accepts gifts from her family during mass at the World Meeting of Families at Benjamin Franklin Parkway September 27, 2015 n Philadelphia, Pennsylvania. Philadelphia will be the final stop of a five-day trip to the U.S. which included stops in Washington D.C. and New York following a three-day stay in Cuba. (Photo by CJ Gunther-Pool/Getty Images)
Pope Francis Celebrates Mass On Philadelphia's Benjamin Franklin Parkway
Pope Francis talks with the Archbishop of Dublin, Michael Jackson (R) at the conclusion of mass at the World Meeting of Families at Benjamin Franklin Parkway September 27, 2015 n Philadelphia, Pennsylvania. Philadelphia will be the final stop of a five-day trip to the U.S. which included stops in Washington D.C. and New York following a three-day stay in Cuba. (Photo by CJ Gunther-Pool/Getty Images)
Pope Francis Celebrates Mass On Philadelphia's Benjamin Franklin Parkway
Pope Francis celebrates mass at the World Meeting of Families at Benjamin Franklin Parkway September 27, 2015 n Philadelphia, Pennsylvania. Philadelphia will be the final stop of a five-day trip to the U.S. which included stops in Washington D.C. and New York following a three-day stay in Cuba. (Photo by CJ Gunther-Pool/Getty Images)
Pope Francis Celebrates Mass On Philadelphia's Benjamin Franklin Parkway
Pope Francis celebrates Mass in Philadelphia on Sept. 27, 2015. (Credit: Justin Sullivan/Getty Images)
Pope Francis in Philadelphia
Pope Francis acknowledges faithful as he parades on his way to celebrate Sunday Mass on Benjamin Franklin Parkway in Philadelphia on Sept. 27, 2015. (Credit: Matt Rourke-Pool/Getty Images)
Pope Francis Rides To Mass On Parkway In The Popemobile
Pope Francis waves to the crowd from his popemobile while on his way to lead Mass at Benjamin Franklin Parkway on September 27, 2015 in Philadelphia, Pennsylvania. Pope Francis is on the final day of his trip to the United States and will conduct Mass and meet with organizers, volunteers and benefactors of the World Meeting of Families before returning to Rome this evening. (Photo by Andrew Burton/Getty Images)
Pope Francis Rides To Mass On Parkway In The Popemobile
PHILADELPHIA, PA - SEPTEMBER 27: Pope Francis waves to the crowd from his popemobile while on his way to lead Mass at Benjamin Franklin Parkway on September 27, 2015 in Philadelphia, Pennsylvania. Pope Francis is on the final day of his trip to the United States and will conduct Mass and meet with organizers, volunteers and benefactors of the World Meeting of Families before returning to Rome this evening. (Photo by Andrew Burton/Getty Images)
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Pope Francis waves to the crowd from his Pope-Mobile while on his way to lead Mass at Benjamin Franklin Parkway on September 27, 2015 in Philadelphia, Pennsylvania. Today concludes the Pope's tour of the United States. (Photo by Andrew Burton/Getty Images)
Pope Francis Rides To Mass On Parkway In The Popemobile
Pope Francis waves to the crowd from his popemobile while on his way to lead Mass at Benjamin Franklin Parkway on September 27, 2015 in Philadelphia, Pennsylvania. Pope Francis is on the final day of his trip to the United States and will conduct Mass and meet with organizers, volunteers and benefactors of the World Meeting of Families before returning to Rome this evening. (Photo by Andrew Burton/Getty Images)
Pope Francis Celebrates Mass On Philadelphia's Benjamin Franklin Parkway
Pope Francis waves he arrives to celebrate mass at the World Meeting of Families at Benjamin Franklin Parkway iSeptember 27, 2015 n Philadelphia, Pennsylvania. This is the final day of a five-day trip to the USA, which includes stops in Washington DC, New York and Philadelphia, after a three-day stay in Cuba. Pope Francis added the Cuba visit after helping broker a historic rapprochement between Washington and Havana that ended a diplomatic freeze of more than 50 years. (Photo by CJ Gunther-Pool/Getty Images)
Pope Francis Visits Curran-Fromhold Correctional Facility
Pope Francis has his ring kissed during a visit to the Curran-Fromhold Correction Facility September 27, 015 in in Philadelphia, Pennsylvania. The pope met with some inmates, their families and prison staff. (Photo by Todd Heisler-Pool/Getty Images)
Pope Francis Visits Curran-Fromhold Correctional Facility
Pope Francis visits with inmates during his visit to the Curran-Fromhold Correction Facility September 27, 015 in in Philadelphia, Pennsylvania. The pope met with some inmates, their families and prison staff. (Photo by Todd Heisler-Pool/Getty Images)
Pope Francis Visits Curran-Fromhold Correctional Facility
Pope Francis blesses a cross during a visit to the Curran-Fromhold Correction Facility September 27, 015 in in Philadelphia, Pennsylvania. The pope met with some inmates, their families and prison staff. (Photo by Todd Heisler-Pool/Getty Images)
Pope Francis Visits Curran-Fromhold Correctional Facility
Pope Francis greets corrections officers during a visit to the Curran-Fromhold Correction Facility September 27, 015 in in Philadelphia, Pennsylvania. The pope met with some inmates, their families and prison staff. (Photo by Todd Heisler-Pool/Getty Images)
Pope Francis Visits Curran-Fromhold Correctional Facility
Pope Francis (L) blesses a cross for Maribel Rivera, an employee at the during a visit to the Curran-Fromhold Correction Facility September 27, 015 in in Philadelphia, Pennsylvania. The pope met with some inmates, their families and prison staff. (Photo by Todd Heisler-Pool/Getty Images)
Pope Francis Visits Curran-Fromhold Correctional Facility
Pope Francis lays his hand on inmate during his visit to the Curran-Fromhold Correction Facility September 27, 015 in in Philadelphia, Pennsylvania. The pope met with some inmates, their families and prison staff. (Photo by Todd Heisler-Pool/Getty Images)
Pope Francis Visits Curran-Fromhold Correctional Facility
Pope Francis visits with inmates during his visit to the Curran-Fromhold Correction Facility September 27, 015 in in Philadelphia, Pennsylvania. The pope met with some inmates, their families and prison staff. (Photo by Todd Heisler-Pool/Getty Images)
Pope Francis Visits Curran-Fromhold Correctional Facility
Pope Francis greets corrections officers during a visit to the Curran-Fromhold Correction Facility September 27, 015 in in Philadelphia, Pennsylvania. The pope met with some inmates, their families and prison staff. (Photo by Todd Heisler-Pool/Getty Images)
Pope Francis Visits Saint Charles Borromeo Seminary To Address International Bishops
Pope Francis talks with bishops and cardinals after speaking at St. Charles Borromeo Seminary on Sept. 27, 2015 in Wynnewwod, Pennsylvania. (Credit: Drew Angerer/Getty Images)
Pope Francis Visits Saint Charles Borromeo Seminary To Address International Bishops
Pope Francis speaks to international bishops at Saint Charles Borromeo Seminary on Sept. 27, 2015, in Wynnewood, Pennsylvania. (Credit: Drew Angerer/Getty Images)
Pope Francis
Pope Francis speaks as he visits the Festival of Families on Sept. 26, 2015, in Philadelphia. Pope Francis is in Philadelphia for the last leg of his six-day visit to the U.S. (Photo by Alex Wong/Getty Images)
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Pope Francis speaks as he visits the Festival of Families September 26, 2015 in Philadelphia, Pennsylvania. Pope Francis is in Philadelphia for the last leg of his six-day visit to the U.S. (Photo by Alex Wong/Getty Images)
Pope Francis Visits Saint Charles Borromeo Seminary To Address International Bishops
Pope Francis greets seminarians as he walks the loggia to his address to the Bishops at St. Martin of Tours Chapel at Saint Charles Borromeo Seminary, September 27, 2015 in Wynnewwod, Pennsylvania. After visiting Washington and New York City, Pope Francis concludes his tour of the U.S. with events in Philadelphia on Saturday and Sunday. ((Photo by Tom Gralish-Pool/Getty Images)
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PHILADELPHIA, PA - SEPTEMBER 27:
Pope Francis visits Saint Charles Borromeo Seminary to address international bishops, September 27, 2015 in Philadelphia, Pennsylvania. After visiting Washington and New York City, Pope Francis concludes his tour of the U.S. with events in Philadelphia on Saturday and Sunday. (Drew Angerer/Getty Images)
Pope Francis Visits Saint Charles Borromeo Seminary To Address International Bishops
Pope Francis poses with seminarians on the steps of St. Martin of Tours Chapel following his address to the Bishops at Saint Charles Borromeo Seminary, September 27, 2015 in Wynnewwod, Pennsylvania. At left is Archbishop Charles Chaput of Philadelphia. At right is Rev. Timothy Senior, rector of St.Charles and Auxiliary Bishop of Philadelphia. After visiting Washington and New York City, Pope Francis concludes his tour of the U.S. with events in Philadelphia on Saturday and Sunday. ((Photo by Tom Gralish-Pool/Getty Images)
Pope Francis Visits Saint Charles Borromeo Seminary To Address International Bishops
Pope Francis speaks to international bishops at Saint Charles Borromeo Seminary, September 27, 2015 in Wynnewood, Pennsylvania. After visiting Washington and New York City, Pope Francis concludes his tour of the U.S. with events in Philadelphia on Saturday and Sunday. At left is Charles Chaput, Archbishop of Philadelphia and at right is Timothy Senior, rector of St. Charles Borromeo Seminary and auxiliary bishop of the Archdiocese of Philadelphia. (Photo by Drew Angerer/Getty Images)
Pope Francis Visits The Festival Of Families On Philadelphia's Benjamin Franklin Parkway
PHILADELPHIA, PA - SEPTEMBER 26: Aretha Franklin performs at the Festival of Families as Pope Francis looks on September 26, 2015 in Philadelphia, Pennsylvania. Pope Francis wraps up his trip to the United States with two days in Philadelphia, attending the Festival of Families and meeting with prisoners at the Curran-Fromhold Correctional Facility. (Photo by Carl Court/Getty Images)
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Pope Francis hugs a disabled member of a Ukrainian family during the Festival of Families on September 26, 2015 in Philadelphia, Pennsylvania. Pope Francis wraps up his trip to the United States with two days in Philadelphia, attending the Festival of Families and meeting with prisoners at the Curran-Fromhold Correctional Facility. (Photo by Matt Rourke-Pool/Getty Images)
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Pope Francis greets the Gonzales family from the United States during the Festival of Families on September 26, 2015 in Philadelphia, Pennsylvania. Pope Francis wraps up his trip to the United States with two days in Philadelphia, attending the Festival of Families and meeting with prisoners at the Curran-Fromhold Correctional Facility. (Photo by Matt Rourke-Pool/Getty Images)
