Swelling populations and a global tide of immigration will present new security challenges for the United States by straining resources and stoking extremism and civil unrest in distant corners of the globe, CIA Director Michael V. Hayden said in a speech yesterday...

European countries, many of which already have large immigrant communities, will see particular growth in their Muslim populations while the number of non-Muslims will shrink as birthrates fall. "Social integration of immigrants will pose a significant challenge to many host nations -- again boosting the potential for unrest and extremism," Hayden said.

The CIA director also predicted a widening gulf between Europe and North America on how to deal with security threats, including terrorism. While U.S. and European officials agree on the urgency of the terrorism threat, there is a fundamental difference -- a "transatlantic divide" -- over the solution, he said.

While the United States sees the fight against terrorism as a global war, European nations perceive the terrorist threat as a law enforcement problem, he said.

"They tend not to view terrorism as we do, as an overwhelming international challenge. Or if they do, we often differ on what would be effective and appropriate to counter it," Hayden said. He added that he could not predict "when or if" the two sides could forge a common approach to security.

Since the Bush administration changed counter-terrorism efforts into a "war", terrorism has risen around the world. The U.S. approach of making everything into a war has failed. It is the wrong strategy.