WASHINGTON (Reuters) - A new survey shows Arab attitudes toward American people, products and culture grew increasingly negative last year, a finding that underscores the need for a change in U.S. Mideast policy, a leading expert on the region said on Thursday. James Zogby, the head of the Arab American Institute, said the annual survey of opinion in five Arab countries found that U.S. policy toward Iraq and the Palestinian conflict were the main issues driving deteriorating Arab opinion. "Our policies have not only had a worsening impact in terms of attitudes toward us but also in dampening confidence in...