Nobody does really know if it's over, maybe the terrorists will go on, maybe in America, maybe anywhere other in the world.
In Germany we have security level 1, so everywhere is more police than I have ever seen before, especially in front of the american institutions.
We have the largest american military base in europe, everything over there is now isolated and highly secured, nobody is allowed to go in or out.
Right now there is a worship in german capital Berlin where all german politicians have joined and thousands of people stand on the street in front of the cathedral or are watching the worship on TV.
I give you my word that Germany will be completely solidary with our american friends, and we gonna find those fiends together, but we can't react in a irresponsible manner, we have to be smarter than them and prevent a war.