Ms. Napolitano said she cut the email cord while governor of Arizona "because I was just getting — you know, you get hundreds and hundreds of things all the time."
In her current job, "which has a hundred thousand different things that happen on any given day, [not using email] allows me to focus on where I need to focus," she added.
But she also explained her decision in a different way, and one that might interest lawmakers or others with oversight responsibility for her department.
"I also don't like the process where people could send you an email, then say, see, you were told, or you know this. And then it comes back two years later to say, hey, you got this email — among the thousands you get every day.
(H/T Fatty Bolger)