Only 2% of refugees are ISIS infiltrators.
So that’s 20,000 ISIS soldiers among 1,000,000 refugees.
Europe can surely handle a mere 20,000 foreign fighters with automatic weapons on their streets.
Some who are from Albania, or other countries that are looking for economic opportunities are being sent back. This article describes how they are interviewed and assessed in a former US military base. It all depends if your country is at war.
http://www.nytimes.com/2015/09/29/world/europe/germany-migrants-refugees.html?partner=rss&emc=rss