Pope speaks to cardinals - Feb 28th, 2013 - International

— Pope Benedict is promising "unconditional reverence and obedience" to his successor.

Benedict delivered his final greetings to cardinals at the Vatican today before he retires in just a few hours.

Benedict urged them to work in unity so that the College of Cardinals is "like an orchestra" where "agreement and harmony" can be reached.

Pope Benedict will leave the palace at the Vatican for the last time as pope and will fly by helicopter to the papal retreat south of Rome.