It most certainly IS against the law to take those handwritten notes out of that room.
And Sandy Berger HAD to know it.
What's the US Code citation (not that I doubt it; I'd just like the facts to back it up)?
The lawyer's words, as quoted by AP: "Berger was allowed to take handwritten notes but also knew that taking his own notes out of the secure reading room was a 'technical violation of Archive procedures, but it is not all clear to us this represents a violation of the law,' Breuer said."