A couple of days ago, I went to a lunch to celebrate Paul Theroux's new book, "Dark Star Safari: Overland From Cairo to Cape Town." "One of the epiphanies of my trip," he writes, "was the realization that where the mode of life had changed significantly in the Africa I had known, it had changed for the worse." When Theroux and I talked, he observed that he had noticed something very strange in The New York Times in the last couple of days - a short Associated Press story about "966 victims [who] were killed in an April 3 assault...