Clinton: I Was ‘Very Careful’ Handling Classified Material During My Years at State

BLITZER: "Will you cooperate with this new State Department investigation?" 
CLINTON: "Well, I assume they will pursue whatever process they think is appropriate and I also assume they will pay very close attention to what the findings were of the Justice Department investigation. But, again, I will repeat, because I think this is important — over 300 people were on these e-mail exchanges, some on many, some on a few, and these were experienced professionals who have had great years of dealing with classified material, and whatever they sent me, they did not believe and had, in my view, no reason to believe at the time that it was classified. So I am very proud of the work that we did during my four years. We dealt with two wars, financial collapse, the Arab spring, and so much else. And I think that the professionals with whom I communicated were very careful about how they handled classified material, as I was over the course of those four years."