[quote=spdrun]Of course. It’s also possible to take a less direct route and cancel flights until one is created if the most direct route is unsafe. Inconvenienced passengers are better than dead ones.[/quote]
And who determines what is unsafe? Airliner? country of Airliner? pilot? country where it departed from?
Unless the country that has the airspace shuts it down there is no reason not to fly over it if it is economically feasible.
Look at it the other way round… would you have posted this if there was no crash today? As of now we don’t know if it was an accident or if it was shot down.