UNITED NATIONS - The United States has by far the largest number of publicly owned firearms in the world and is approaching the point where there is one gun for every American, according to the Small Arms Survey 2003 released Tuesday. But in surprise findings, the survey found that Europeans are more heavily armed than commonly believed while there are far fewer small arms in Afghanistan (news - web sites) and sub-Saharan Africa than previously estimated. According to the independent survey, the crackdown on terrorism after Sept. 11, 2001, attacks on the United States "had little effect on the size...