Only a very small number of the e-mails containing classified information bore markings indicating the presence of classified information. But even if information is not marked 'classified' in an e-mail, participants who know or should know that the subject matter is classified are still obligated to protect it.
James ComeyThe Obama administration was not in a position where they were seeking legislation. I don't know yet how President Trump intends to approach this. I know he spoke about it during the campaign. I know he cares about it, but it's premature for me to say.
James ComeyOur focus is and should be on the leakers, not those that are obtaining it as part of legitimate newsgathering.
James ComeyShe [Hillary Clinton] used her personal email extensively while outside the United States, including sending and receiving work-related emails in the territory of sophisticated adversaries.
James Comey