US State Department warns American citizens of terror in Europe

US citizens are required to be wary that terrorist may launch attacks without warning in advance. The US State Department website recalled the attack at a Christmas market in Berlin, Germany, in December last year, killing 12 people and another attack at a nightclub in Istanbul, Turkey on New Year's Eve killing 39 people. Recent terrorist attacks in Britain, Finland, France, Russia, Spain and Sweden have shown that both the Al-Qaeda and IS terrorist organizations have the potential to cause out attacks during holiday season.