I belong to a number of forums, e-lists, etc. A variation of this meessage has been posted to a number of them by coordinators,moderators, etc:

On this day of tragedy we are all facing the thought of attacks in
our own ways. As listmoms of the xxxxxxxx we have made the decision
to once again ask that you refrain from discussing the tragedy on
list. As with 9/11 we want to make the list a safe place away from
the tragedy since it will be affecting so much else of our lives in
the coming days. We know you have many other outlets to discuss this,
so please keep the list on topic

Well, gag me with a maggot!

I'm certainly glad to be at a place where I can find out my friends and acquantainces are SAFE - that THEIR friends and relatives are safe, and where I can express support and concern in the context of community. Or conversely - should I find out some are NOT safe - to be where there is support and concern expressed for those effected - not excluding myself!