Some people seem to be giving credit to the separatists for 'handing over' the flight recorders.
Have they considered that they were vital evidence in a criminal investigation, removed from a crime scene.
TV reporters have plenty of photograhs of heavy equipment moving sections of the airframe before crash investigators have arrived. Early shots show collections of passports - what else of the passengers poossessions have been collected of looted.
The behaviour is all consistent with unacceptable interference by the local 'militias' whoever is directing them.