In the same mindset - Rome is a major target for Muslim immigrants. It's not just that though, Russia invaded Afghanistan (I think, but I was very young and the details are hazy) on Christmas day one year. It is symbolic for the West. These days Christmas markets provide handy gatherings of a lot of people in one space. Only today, I was up at church decorating with foliage only (no flowers in Advent) ready for Sunday. We're singing Elgar's 'Ave Verum' - lovely tune, can recommend it if you don't know it.
I think this time of year is now always going to be a focus for terrorism.