The Democratic presidential front-runner said in an interview with NBC News that she was immediately confronted by a number of global hotspots after joining the new Obama administration as its top diplomat and didn't think much about her email after arriving at her new job.
"You know, I was not thinking a lot when I got in. There was so much work to be done. We had so many problems around the world," Clinton said. "I didn't really stop and think what kind of email system will there be?"