Do airlines still fly over Ukraine?

The report earlier this week confirmed what we thought was true: Dutch investigators concluded that Malaysia Airlines Flight 17 was shot down by a Russian-made surface-to-air missile last July while en route to Amsterdam, leading to a crash that killed all 298 people on board the 777.

But what's still an open question, investigators and safety experts said this week, is why commercial airliners are still flying near over conflict zones at all. The investigators had no easy answer as to why the airliner was flying over Ukraine, nor to what the world is going to do to keep airliners away from danger.