Is Pope Francis Nearing the End of His Pontificate?

The pain became obvious five months ago, when Pope Francis first started avoiding standing up. "An inflamed ligament in the knee," the pope said, noting the condition is common among the elderly. He described it as a problem that would soon pass. But by late April, he said his right knee was "still not healing." Soon after, he was using a wheelchair. "I would like to apologize," he said, telling pilgrims one morning that he couldn't greet them on foot as usual.