"Mrs. Clinton sending them in this instance would show her intent much more than would receiving [them],” the source said. "Hillary Clinton was at a minimum grossly negligent in her handling of NDI [National Defense Information] materials merely by her insisting that she utilize a private server versus a [U.S. government] server. Remember, NDI does not have to be classified." According to the Congressional Research Service, NDI is broadly defined to include “information that they have reason to know could be used to harm the national security.”...From: "Source: Clinton IT specialist revealing server details to FBI, 'devastating witness.'"
March 11, 2016
"The intelligence source said the FBI is 'extremely focused' on the 22 'top secret' emails deemed too damaging to national security to publicly release under any circumstances..."
"... with agents reviewing those sent by Clinton as well her subordinates including former chief of staff Cheryl Mills."