The reward for letting many Muslims immigrate is to become a center of terrorist activity.

The penetration of Al-Qaeda-connected operatives is greatest in those nations of the European Union that have liberal asylum and immigration laws, and those countries that maintain established and strong immigrant communities within well-defined geographic boundaries.

The problem has grown to such proportions that the Dutch internal security service, the Binnenlandse Veiligheidsdienst (BVD), stated in an official threat assessment that potential terrorists have singled out Holland - as a result of its lenient attitude to asylum and religious freedom. The BVD suggests the country is seen by potential terror groups as a safe haven where they can set up operational bases for furthering their cause. Dutch media has estimated the existence of several hundred terrorists on Dutch soil.