Which is still accidently because they didn't intend to shoot down an airliner.
Same thing when the Vincennes shot down that Iranian airliner. The firing was intentional, but the target wasn't the intended one.
I don't know much about that. But I do suspect with the technology out today, they had some way to decipher between a passenger plane and fighter jet. And given the money DumBama gave them, they could probably have afforded the best detection systems.
I would also think these sandbox warriors had some access to flight records of passenger jets as well. Again, I'm not very well educated on planes and detection systems, but I do believe in the end, it will be proven it could have easily been avoided.