All Vatican personnel involved in supporting the upcoming papal conclave must take an oath of secrecy — under penalty of automatic excommunication. The ceremony on Monday, mandated by Vatican law and revised by Pope Benedict XVI, includes clerics and lay staff alike: cooks, cleaners, doctors, nurses and security officials. Nearly 135 cardinal electors will gather in the Sistine Chapel, beginning on Wednesday, to vote in secret for Pope Francis's successor. The oath, which explicitly forbids recording or disclosing anything from within the conclave, underscores the Church's insistence on confidentiality. Cardinals are bound by their own rules of secrecy. They will take their oaths on Wednesday.

Pope Francis has fallen and hurt his right arm. It's the second time in a month that Francis has injured himself after an apparent fall resulted in a bad bruise on his chin. The Vatican spokesman said in a statement Thursday that the pope didn't break his arm but that a sling was put on as a precaution. Francis whacked his chin on his nightstand on Dec. 7 in an apparent fall that resulted in a bad bruise. The 88-year-old pope has battled health problems and often has to use a wheelchair.