the mine from being blown up did not fare well in the postwar period. All members of the Nazi Party, as were most professionals at that time in order to be allowed to work, they were all affected to one degree or another by the post-war denazification efforts. None of them received during their lifetimes the credit that was due to them for their acts in saving a significant portion of the art which had been looted by the Nazis from the Occupied Territories. In Eastern Europe, Soviet premier Joseph Stalin tasked Mikhail Khrapchenko with taking many of the Führermuseum artworks to stock Soviet art galleries. Khrapchenko said "it would now be possible to turn Moscow's Pushkin Museum into one of the world’s great museums, like the British Museum, the Louvre, or the Hermitage." Stockpiled artwork was recovered by the Soviet "Trophy Brigades" from the two enormous flaktowers which had been built in Berlin to shelter people and supplies; many of the paintings in the Friedrichshain Flaktower were destroyed by fires. Recent developments In 1998, the Federal Republic of Germany and 43 other countries agreed to the "Washington Principles", which required them to closely inspect their art inventories to establish the provenance of works which had changed ownership between 1933 and 1945. In particular, German, France, Austria and the Netherlands and other countries publicly disclosed what artworks from the Sonderauftrag Linz collection remained in their inventories. The work began in Germany in 2000, and artworks which are "shown by renewed research to involve a persecution-related deprivation of property during the National Socialist period are to be returned." In his book Das Braune Haus der Kunst: Hitler und der "Sonderauftrag Linz" ("The Brown House of Art and the 'Sonderauftrag Linz'"), published in Germany in 2005, Hans Christian Löhr argued that 191 artworks were missing at that time, and that they may be hanging in museums or private collections. This is discussed in the film documentary The Rape of Europa and in Noah Charney's book The Ghent Altarpiece, Stealing the Mystic Lamb. As of 2010, a photo album that an American soldier took from the Berghof, Hitler's vacation home, which catalogued artwork Hitler desired for the museum, was to be returned to Germany. Of the photo albums created for Hitler, 39 of them were discovered by American armed forces at Neuschwanstein, where they had been deposited for safekeeping in April 1945. These