Ever since the failed attack on a train in France last August [by two Americans and a Britain] it has been clear that for one reason or another France and it's capital Paris are going to be the target of choice for terrorists.
Intelligence gathering is a hot topic not just at the moment but always because of the clash with liberty, but it cannot be under estimated how powerful a tool against terrorists it is.
However, it saddens me when I read of stories like "German police stopped a man [5-Nov-2015] on the highway between Salzburg, Austria, and Munich driving a car with a cache of guns and explosives. The man from Montenegro, had programmed his car’s GPS with directions to Paris and he said he wanted to see the Eiffel Tower." All well and good you might think, except that this information was not passed between the two countries concerned.
I will and have moaned about Europe's open border policy which now seems to be collapsing, but if Europe wants to be tighter together it should start with communication.