When reading the article about the old woman being raped by a refugee in Germany Derek said "Refugee" in quotation marks, mentioning that he was just left in. During the episode a refugee crisis in Europe was on. However the refugee from the story arrived 1-2 years before the crisis began, so, despite being a horrible event, it was not related to the crisis done at that moment.
When showing the DVD for his Self-defense-movie the green parts on the cover became transparent, revealing that Derek is sitting in front of a green-screen.
When showing a CNN-News article Derek calls the continent of Europe a "country".
When reading a CNN-article about ISIS attack every 84 hours in Europe for the second time, Derek read it as "4 hours".