LEMON: Did you know that cardinals cannot vote for themselves when they vote for a new pope? That's just one of the things we are learning about the top secret process to elect the next pope. The chimney is in place that will send up the white smoke signal when a new pope is selected. Or a black smoke if they haven't reach the decision yet. 115 participating cardinals will begin the secret election on Tuesday. Our Jonathan Mann spells it out for all of us.</s>JONATHAN MANN, CNN CORRESPONDENT (voice-over): It's the oldest electoral system in the world and many of its traditions have been unchanged for centuries. The conclave, which literally means locked with a key dates back to a time when cardinals were locked in until they chose a new pope. Now it's the world that's locked out, figuratively speaking as much of the conclave will take place behind closed doors. The gathering begins with a morning mass in St. Peter's Basilica. In the afternoon, the 115 voting cardinals, those under 80 years old, enter the Sistine Chapel where each will take an oath of secrecy. The penalty, automatic ex-communication. After the oath, preparations are made for the election taken by secret ballot. Lots are drawn to select three cardinals who will help collect ballots. Three more cardinals to count the votes and three others to review the results. Printed on the ballots, the words meaning</s>LEMON: All right. Jonathan, thank you very much. It's gang warfare but this battle doesn't stem from drugs or money but it's all about what's being said on social media.
Secret Process to Elect a Pope