"the wall street journal"'s laura meckler has been covering the story. w unusual is it that any secretary of state would be using a personal email account exclusively? >> well, it wasn't that unusual, frankly, because there haven't been that many secretaries of state since email became the normal way to communicate in business. secretary powell use add personal account his staff confirmed. secretary rice didn't use email, then we had secretary clinton. secretary kerry use as regular state department email address himself. >> ifill: exclusively without any other .gov address involved? >> secretary clinton just used her personal email address. secretary powell did just use a personal email as well. >> ifill: to have your own personal server they call home brew which is connected to her home in chap chapa quo actually, how much does this keep public business private? >> well, i think that's the real question here. i think you put the finger on it. the question is why does she have not only her own email address and not just get the one assigned you at work l