December 23, 2010: A Clinton aide wants to talk on the phone about classified information.

Clinton aide Jake Sullivan emails Clinton and mentions a State Department diplomat who has “some interesting reports from the Pal [Palestinian] side, if you have a moment to talk secure.” The Washington Post will later refer to this as a rare instance where either Clinton or any of her aides shows concern about the communication of classified information. (The Washington Post, 9/1/2015) (US Department of State, 8/31/2015)