Chances are really good that no one reading this will ever be named a United States Ambassador to the Holy See (though I'd love to be proven wrong).
This past February 29, U.S. Ambassador Mary Ann Glendon presented her credentials to the Holy Father, and her and her family participated in a beautiful ceremony in the Apostolic Palace and St. Peter's Basilica. Luckily, Ambassador Glendon's daughter, Elizabeth Lev, a contributor to the Zenit News Service, wrote an article describing just what happens moment-by-moment during the ceremony.
You can read the article by clicking here.
Photo: AP/L'Osservatore Romano