 McClure says he drank some of the water. If there's something in it, he may die. Other swimmers who are coming for the Olympics will know that if I don't die, that it's safe to swim in. Good news for him. New tests show water quality in the Seine improved over the past week. I'm Ed Donohue. Scientists have made a surprising discovery about termite mounds. In South Africa, correspondent Donna Warder has the story.