FILE - In this Sunday, Nov. 21, 2010 file photo, newly-appointed U.S. 

FILE - In this Sunday, Nov. 21, 2010 file photo, newly-appointed U.S. Cardinal Raymond Leo Burke walks past Pope Benedict XVI after receiving Cardinal's ring during a mass in St. Peter's Basilica, at the Vatican. Burke, the former St. Louis archbishop, is the first American to lead the Vatican supreme court. (AP Photo/Pier Paolo Cito)
Associated Press
FILE - In this Sunday, Nov. 21, 2010 file photo, newly-appointed U.S. Cardinal Raymond Leo Burke walks past Pope Benedict XVI after receiving Cardinal's ring during a mass in St. Peter's Basilica, at the Vatican. Burke, the former St. Louis archbishop, is the first American to lead the Vatican supreme court. (AP Photo/Pier Paolo Cito)
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