Dan - we had it in the '70's with the IRA, you've got to be alert at all times in busy areas, be prepared for the 'inconvenience' of being searched , but in the end you've got to KEEP CALM AND CARRY ON.
The loss of life of innocent people is a tragedy!
It's sickening.
Still we can continue to stand shoulder to shoulder and light some candles until the next on.
Merkel's insane policy of mass Muslim migration is one giant suicide bomb for Germany and the rest of Europe.