There is sooo many assumptions going on it is almost dangerous.
George and Cathy had all rights to hire a lawyer. I believe I would to if my house was surrounded after a unidentified body was found. I would also feel quite unsafe with the 'lynch mob' mentality that seems to be running rampant web wide ( and off the web also, I am sure. )
They could very well be going on a news show to show their true feelings, and to perhaps change the current public sentiment so that they can feel safe to go home. And perhaps when the body is identified and it turns out to be Caylee, they may cancel. People do many strange things while grieving.
I think it would be hard to convince me that my child had killed her own child. I believe I would want proof as well. I am sure they have doubts always in the back of their minds but it is the first instinct of parents to defend their children.
Of course, there are those who will admit their child has done something heinous and still be on their side. It remains to be seen what they will do.
Personally, I feel bad for both of them tonight, as they fight the inner battle of not KNOWING if this is their granddaughter. Hopefully there are some real answers soon.