Several bloggers have posted thoughtful sensitive posts, but otherwise I think most of us have kept quiet over the past few days, because there is nothing we can say that hasn't been said before, and (I felt) maintain a respectful silence.
But I have heard what I think are some somewhat trite responses from political figures. Jeremy Corbyn has said we should prevent terrorism rather than shoot to kill, but how exactly does he propose to do that? Of course it is always better to prevent carnage than to have to respond to it with weapons, but in this case, prevention seems almost impossible, and we cannot stand back and see ordinary people mown down. And then President Putin has promised that the terrorists who brought down the Russian plane will be found and punished. Good idea, but again, how is he going to do it? The problem is so huge, and so widespread, it must be hard for those dealing with terrorism to know where and how to begin.
These terrorists seem to me to have two major advantages. Firstly, they are scattered round the world in small pockets, so are almost impossible to target. Secondly, they are prepared to die for their cause by blowing themselves up. What can we do against that?
I'm not a political animal, and would be the first to say there's a lot I don't know that I really ought to know. But like most of us, I fear for our civilisation, and for the futures of my (and your) children and grandchildren.
But all I can do - all most of us are able to do - is think of those who lost their lives, and of their grieving families. And wait.