Well, just to be clear, my point was that ppl have the right of having information, I wasn't touching the issue of hiding x acting against, so of course all you said is true and even more true if ppl know how, when, where and against what to act. One good example is the increased amount of young frenchs joining the army, police or any organization which can pro actively fight terrorism. They did/do so because of the huge commotion caused by those attacks in Paris and elsewhere which were the focus of scrutiny in international medias.
This was one of the reasons I took my then fiancee out of eastern germany this year, I could see with my eyes the "refugees" everywhere and I knew they like to rage rape white women. She also didn't feel safe there. Germany is a place very different from USA or the UK, it was so safe that one could not see police often patrolling, women could walk alone during the night back in 2014 in Munich, in public parks which are pretty much desert. Now these ppl are everywhere doing easily these things because it is difficult to catch them (no cameras or no police or simply no ppl around).