Nancy Grace staunchly defended her HARSH criticism of the Casey Anthony jury -- claiming on "TMZ Live" ... "I can speak my mind, this is America."
Harvey Levin argued that Nancy's scathing critique of the jurors on national TV could sabotage the jury process -- and dissuade future potential jurors from wanting to serve.
But Nancy lashed back, "No TV pundit has the ability to sway a jury."
Nancy Grace on Tot Mom Criticism
"I Can Speak My Mind
... This Is AMERICA!"
9/16/2011 1:00 PM PDT BY TMZ STAFF
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