I'm shocked that in 2016, we can't pinpoint to a fairly decent degree of certainty where the aircraft could be after 24hrs of daylight since it went missing.
The aircraft went missing in what was primarily 'European' airspace, so we are not talking Pacific Ocean or vast areas of dead zone radar coverage here.
I've avoided phrases like crash, downed, blown up etc because we don't know what happened here and my thoughts go out to all the families and friends of those onboard who must be going through hell at this very difficult time.