Tell you what.. I'm a little cynical but in the "watif" column I have Putin helping the separatists take the launcher from the Ukranians and encouraging them to shoot down that transport plane.
Now the world's shocked and Putin can act appalled and determined to stop the flow of arms to the separatists. Russia saves face, Ukraine can retake the region from those "dangerous terrorists", peace comes to the region and a memorial is dedicated to those who perished needlessly on that commercial flight.
No?