MH17 prosecutors now face tricky task of catching culprits

A Dutch-led criminal probe to find those responsible for shooting down flight MH17 has now become the top priority after the cause of the crash was unveiled, but doubts remain whether the culprits will ever be caught.

Analysts said Wednesday that Russia's cooperation in the investigation to identify those behind the downing of the Malaysia Airlines flight on July 17 last year was now essential -- but also highly unlikely.