>> reporter: good morning, john and christine. while heading the state department hillary clinton relied solely on a personal e-mail account. it's not that strange for a secretary to have a personal account, but only a personal account, this is out of the norm. and while clinton may not have broken the law by doing this, she certainly broke with the spirit of the law. clinton released 55,000 pages of her e-mails to the state department recently, but she has unilateral control over this account, and republicans are hammering her for it. >> the state department does not have all of secretary clinton's e-mails on its servers. only she has a complete record. and the committee is going to have to go to her and her attorneys and her e-mail providers to ensure we have access to everything the american people are entitled to know. >> reporter: a clinton aide tells me her use of just a personal account was nothing nefarious. she had a blackberry before she became secretary, he tells me, and she kept using it after she entered the obama administration. but security experts warn there are huge security risks using just a private account.