1.   Klosi said he believed terrorists had already infiltrated other parts of Europe from bases in Albania.

2.   Last month, senior U.S. government officials visiting Indonesia said it was easy for international terrorists to infiltrate the region posing as refugees.

3.   Several suspected terrorists have infiltrated from Canada.

4.   Left-wing terrorists have infiltrated the German parliament to gather confidential information, the Bild am Sonntag newspaper reported on Sunday, citing security experts.