Federal officials and representatives from the U.S. Holocaust Memorial Museum in Washington announced the seizure of a long-lost diary kept by a close confidant of Adolph Hitler. The recovery of this historical document was the result of an extensive investigation conducted by U.S. Immigration and Customs Enforcement’s (ICE) Homeland Security Investigations (HSI). The "Rosenberg Diary" was written by Alfred Rosenberg, one of the most notorious members of the Third Reich and of the Nazi Party during World War II.