On March 18, 2011, Blumenthal wrote to Clinton about a conversation he had had with Tyler Drumheller, a former CIA official, who divulged the name of the contact. When the email was released to the Select Committee on Benghazi, the name was redacted.
"Tyler spoke to a colleague currently at CIA," Blumenthal wrote, "who told him the agency had been dependent for intelligence from [redacted due to sources and methods]."
It is bad enough that Drumheller, who had business interests in Libya along with Blumenthal, was able to learn so much from intelligence officers in the field. It is worse that he was so indiscreet as to tell Blumenthal, who had no business knowing and certainly no business sending email from his AOL account. But worst of all, this information reached Clinton in a way that left it open to anyone with the right computer skills.