Wednesday morning the German police announced they have made another arrest in the terrorist attack on the Christmas Market in Berlin. This man is reportedly a 40 year old Tunisian national, is being treated as an accomplice.

Anis Amri, 24, the main suspect in the attack that killed 12 people and injured dozens more on Dec. 19. was shot dead by Italian police. Amri, also a Tunisian national, was a failed asylum seeker who was due to be deported.

The development in the investigation came as new data revealed that a record number of migrants voluntarily left Germany this year to return to their countries of origin, according to figures from Germany’s Office for Migration and Refugees.

About 55,000 migrants chose to leave Germany from January to November, the Sueddeutsche Zeitung, a daily newspaper, reported.

The newspaper cited data it obtained from the migration office. Migrants from Balkan nations Albania, Serbia and Kosovo formed the largest group of volunteer returnees. The 55,000 figure is more than twice the number of migrants — 25,000 — who were deported. Last year, 37,220 migrants voluntarily left Germany while 20,914 were deported.

Germany admitted about 900,000 asylum seekers in 2016. Chancellor Angela Merkel’s government has pledged to increase the number of deportations for asylum seekers whose applications are rejected because they do quality for protection under international law.

Unlike Syrians and other applicants from some Middle Eastern countries, asylum seekers from the Balkans are not classed as fleeing war or persecution.

This development is sure to increase an already tense situation as the public reacts to the refugee crisis in Europe. Like a window to the future of all western nations who ignore the reality of terrorist cells within the ranks of the refugees.

Donald Trump has been criticized for his awkward attempts to explain the desire to screen people who want to come to this country, however the increased number of attacks by these micro-cells are making the case for him.

It’s difficult to argue that we don’t need to develop a process to more closely examine those who move to this country. Let those who are coming for freedom and opportunity in, keep those who want to kill us all out.