there is a real threat, and there are those who will not offer solutions. To them the obsession is to at all costs remain altruistic and humane which I too am all for, but solutions are being avoided at the real expense of foregone time, losing the jump on it day by day as it builds globally. I have advocated seriously coming up with strategies similar to what @Andre has suggested as well, to rout out the maybe 1% of extremist cells/groups among them as well. I have suggested (and even taken a small bit of action here in Turkey with) fantastic strategies of community outreach, relationship building, working together with imams to identify individuals who may be overheard or observed speaking about planning violent acts, etc. or exhibiting in the opinion of an imam a dangerous extremist behavior, calls for violent jihad against innocent people, etc. But there are those who will say there is some problem or other with this, and yet will offer no solution of their own. Its easy to sit back singing Kum-Ba-Ya and say what the solution is NOT, that is the contrarian's way of not sticking one's neck out and offering a solution.