BORN FIGHTING: HOW THE SCOTS-IRISH SHAPED AMERICA BY JAMES WEBB 'TIS no doubt folly to ascribe John Kerry's November defeat to anyone cause, but there's also little doubt that the ad campaign mounted late last summer by the Swift Boat Veterans For Truth put some heavy hurt on the Democrat's presidential ambitions. How is that? The Kerry campaign collided with traditions that inform the largest and most pugnaciously principled American ethnic group that you probably never heard much about: the Scots-Irish. After that, the Massachusetts liberal never had a chance. Or so suggests James Webb, himself a decorated Vietnam veteran,...