@Jens_Rasmussen @teto Like with many things, I don't know, but I recently read how people who arrive here as refugees are promised lots of women, cars, houses, and free money. But then they end up in shared rooms with other refugees and a small allowance from the state. What then happens, allegedly, is radicalization in local mosques, which leads to what saw.

But seeing many of the recent attackers being actually "well-integrated," one of them even a doctor, you could argue it doesn't matter whether refugee or well-adjusted citizen, what they all have in common is Arab background and Muslim religion.