Evidently Robert McCulloch is unaware HE has a moral, professional and LEGAL obligation to keep liars off a witness stand. Or at least he wants to pretend like he is unaware. http://www.npr.org/blogs/thetwo-way...jury-heard-witnesses-who-lied-prosecutor-says http://talkingpointsmemo.com/livewire/bob-mcculloch-ferguson-grand-jury-witness-lied