Can the Decoherent Histories Description of Reality be Considered   Satisfactory?
  We discuss some features of the Decoherent Histories approach. We consider four assumptions, the first three being in our opinion necessary for a sound interpretation of the theory, while the fourth one is accepted by the supporters of the DH approach, and we prove that they lead to a logical contradiction. We discuss the consequences of relaxing any one of them. 
Angelo Bassi, GianCarlo Ghirardi