RAMALLAH, West Bank (Reuters) - Palestinian President Yasser Arafat has liver failure and his condition is not improving at the French military hospital where he is being treated, a Palestinian official said on Sunday. The official, who declined to be named, said Palestinian officials were considering moving Arafat to hospital in Cairo, from where he could be flown home more quickly if he died. But he added that any decision to move him could be taken only by the Palestinian leadership. "He has liver failure. His condition is not improving," said the official. He said a low count of platelets,...