George Mitchell, the latest peacemaker appointed by the US to work on an Israel-Arab settlement, will need the sense of humour he displayed when he was introduced last week by Secretary of State Clinton. Just recently, he said, he spoke in Jerusalem about his peace-keeping mission in Northern Ireland and mentioned the 800 years of bitterness and hatred which separated the communities there. "Afterward, an elderly gentleman came up to me and he said, 'Did you say 800 years?' And I said, 'Yes, 800.' He repeated the number again – I repeated it again. He said, 'Uh, such a recent argument.