Chris Christie on Morning Joe yesterday, quoted in a NY Times editorial piece by Andrew Rosenthal today:

“I’m accountable,” Mr. Christie explained. “It happened on my watch. So you’re accountable. It’s different from being responsible. I think responsible is (for) if you did something. Accountable is, listen, it’s on the governor, the buck stops with me. So I’m accountable. That’s why I fired the folks I fired immediately.”

Well, that clears things up.