Pope Francis weds couple on papal plane       Pope Francis  celebrated the first-ever airborne papal wedding on Thursday, marrying two flight attendants from Chile's flagship airline at 36,000 feet during a flight from Santiago.     Bride Paula Podest, 39, and groom Carlos Ciuffardi, 41, said "I do"  after telling Francis that they had been married in a civil service in 2010 but had been unable to follow up with a church ceremony  because of the Feb. 27, 2010, earthquake that rocked  Chile.   Francis then offered to marry the LATAM flight attendants aboard the  Airbus  321 en route to the northern beach city of Iquique, and they readily agreed. The head of the airline served as the witness.   "He told me it's historic, that there has never before been a pope who married someone aboard a plane,"  Ciuffardi told journalists aboard the flight.   Ciuffardi said the pope also told them: "This is the sacrament that is missing in the world, the sacrament of ...