BELGRADE, SERBIA - A hidden alliance between terror networks and organized crime gangs that control heavily used smuggling routes in the Balkans is making it easier for terrorists to infiltrate Western Europe, according to law enforcement officials and intelligence experts. In addition, prosecutors in Serbia believe that in some cases the money earned by people traffickers is used to support terrorist activities in Europe, which has been hit by several major terrorist attacks in the last two years, with many others prevented by police raids. ... "This is a paradise for al-Qaida," said Marko Nicovic, former police chief in the...