(CNN) -- Roman Catholic cardinals arrived at St. Peter's Basilica for a special morning Mass on Tuesday morning, their last public event before they enter a secret election in the Sistine Chapel to choose a new pope.
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(CNN) -- Roman Catholic cardinals arrived at St. Peter's Basilica for a special morning Mass on Tuesday morning, their last public event before they enter a secret election in the Sistine Chapel to choose a new pope.
