FBI agents involved with the investigation into Hillary Clinton’s private email server were required to sign a non-disclosure agreement barring them from discussing the case with anyone else unless called to testify.
Agents who spoke with the New York Post said they had never heard of the "Case Briefing Acknowledgement" form before working on the Clinton email probe. Signing the form prevented personnel from speaking about the investigation publicly.
"This is very, very unusual. I’ve never signed one, never circulated one to others," a retired FBI chief said.
FBI sources close to the case also were reportedly disappointed with Director James Comey’s decision not to recommend that Clinton be charged for a crime, according to the New York Post.
Another source said that "FBI agents believe there was an inside deal put in place after the [Attorney General] Loretta Lynch/Bill Clinton tarmac meeting," referring to when the two met on Lynch’s plane in Phoenix, Arizona days before Comey’s announcement to not recommend charges.
Lynch announced the same week of Comey’s statement that the Justice Department was not going to charge Clinton for mishandling classified information over her server while at the State Department.
Comey testified before the House Oversight Committee after Lynch made her decision, and his testimony led House Republicans to ask the Justice Department to open an investigation into whether or not Clinton lied to Congress during her testimony last fall about her email practices.