That cackle in response to questions she doesn't want to answer is one of a number of extremely annoying traits Her Heinous exhibits. It will not help her as she does more interviews and more people experience it...at least I hope so.
Unfortunately, Hillary is like a robot that learns. She is very good at altering her behavior, her appearance, her mannerisms, her speech patterns, voice, gestures, message, and everything else that's superficial. The only thing that doesn't change is her belief system. I'm just concerned that she'll succeed in fooling 50.01 per cent of the people.
Since when does Hillary permit questions she doesn't want to answer to be asked?