Stocks tumble, gold and crude soar after Iran strike on U.S. forces

By Andrew Galbraith SHANGHAI (Reuters) - Asian shares and U.S. treasury yields tumbled on Wednesday, while the yen, gold and oil shot higher after Iran fired rockets at Iraqi airbases hosting U.S. military forces, stoking fears of a wider conflict in the Middle East. Iran's missile attacks on the Ain Al-Asad air base and another in Erbil, Iraq, early Wednesday came hours after the funeral of an Iranian commander whose killing in a U.S. drone strike has intensified tensions in the region. MSCI's broadest index of Asia-Pacific shares outside Japan...