I feel like the state almost has to call Cindy and George to testify. The 911 call, the smell in the car, the fact that Caylee was not heard from after June 16th from either of the Grand parent's makes their testimony crucial, IMO. I believe the state will have no problem in declaring them to be hostile witnesses should they try to evade the truth on the stand, and I think they will work this so that the jury gets a good feel for these Grandparents, before pressing them for the hard answers. Maybe between now and then one of them or both might decide to be more truthful, I don't think it will happen, but there's a lot that can change between now and the trial. It has been reported that the state expects them to help convict Casey, through their truthful testimony, and if that doesn't happen there could be charges at the other end of the trial. I think the state realizes the sympathy factor for these Grandparent's may be high in people not familar with the history of this case, the lies and attempt at cover up, but once the state shows the jury their history, that sympathy factor, IMO, will not be a problem.