The "Rosenberg Diary" was written by Alfred Rosenberg, one of the most notorious members of the Nazi Party during World War II. In November 2012, the U.S. Attorney's Office for the District of Delaware and HSI special agents received information from an art security specialist, who was working with the U.S. Holocaust Memorial Museum, regarding the search for the Rosenberg Diary. The Rosenberg Diary was subsequently located and seized pursuant to a warrant issued by the U.S. District Court for the District of Delaware.