"Decided" can mean many things.
The emails confirm the ABC News report that the so-called "talking points" written by the CIA on the attack underwent extensive revisions – 12 versions – and that substantial changes were made after the State Department expressed concerns.
The early versions of the talking points, drafted entirely by the CIA, included references to the al Qaeda affiliate Ansar al-Sharia and to previous CIA warnings about terror threats in Benghazi. State Department spokesman Victoria Nuland expressed concerns about including those references in the talking points.
In one email, previously reported by ABC News, Nuland said that including the CIA warnings "could be used by Members [of Congress] to beat the State Department for not paying attention to Agency warnings so why do we want to feed that? Concerned …"