Oh, yoohoo, herschel,....she actually said she took responsibility and apologized several times, e.g. from a televised interview with David Muir on ABC News 9/28/15
"But in retrospect, as I look back at it now, even though it was allowed, I should have used two accounts. One for personal, one for work-related emails. That  was a mistake. I'm sorry about that. I take responsibility"  here's a helpful tipi: a little healthy skepticism of the FOX News pap might save you some public embarrassment in situations such as this