A registered USG whistleblower who had turned over documents related to shennanigans involving the Clinton Foundation and Uranium One was raided by the FBI in November (archived). Dennis Nathan Cain had turned the documents over to the Department of "Justice" inspector general as well as the US House and Senate Intelligence committees, but that apparently wasn't enough for the FBI who, in apparent violation of the "Intelligence Community Whistleblower Protection Act", showed up at his door demanding his original copies of the documents and searched his home a further 6 hours after he surrendered the documents. Federal magistrate Stephanie A. Gallagher of the US District Court for Balimore signed an order approving the raid as the FBI asserted Cain was sitting on "stolen federal property".
The scandal upon which Crain blew the whistle involved Hillary Clinton as Secretary of State recieving obscured compensation from foreign parties in exchange for providing concierge service to facilitate regulatory approval of Rosatom's purchase of Uranium One.