The US mainstream media doesn't usually get high points for international coverage -- unless it is PBS, the public broadcasting service. PBS offers the nationally broadcast "Frontline World" and its accompanying Web site, which run in-depth stories from around the world. PSB also teams up veteran broadcasters with rising talents from American journalism schools. The show  recently sent student fellows to Afghanistan to track the burgeoning democracy and to Europe, where a Hungarian student traced the continent's changing demography from Paris to Istanbul along the route of the Orient Express.