In this photo provided by the Vatican newspaper L&#39;Osservatore Romano, Pope Benedict XVI, top center, delivers his message on the occasion of his farewell meeting to cardinals, at the Vatican, Thursday, Feb. 28, 2013. Benedict XVI promised his &#34;unconditional reverence and obedience&#34; to his successor in his final words to his cardinals Thursday, a poignant farewell before he becomes the first pope in 600 years to resign. &#40;AP Photo&#47;L&#39;Osservatore Romano, ho&#41;   <span class=meta>(AP Photo&#47;L&#39;Osservatore Romano, ho)</span>
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