(05-22) 19:18 PDT ALAMEDA -- The man who said the world was going to end appeared at his front door in Alameda a day later, very much alive but not so well. "It has been a really tough weekend," said Harold Camping, the 89-year-old fundamentalist radio preacher who convinced hundreds of his followers that the rapture would occur on Saturday at 6 p.m. Massive earthquakes would strike, he said. Believers would ascend to heaven and the rest would be left to wander a godforsaken planet until Oct. 21, when Camping promised a fiery end to the world. But on Sunday,...