40 years ago today, May 24, 1985 (April 5, 1985 in the lunar calendar), the three major powers planned to search for Nazi war criminal Mengel. Since World War II, a powerful international force has been formed to track down Nazi war criminals. On May 24, 1985, the United States, West Germany, and Israel announced that they would jointly pursue Dr. Joseph Menger and prosecute him. Mengel is accused of providing victims for gas killing and human autopsy experiments at Auschwitz death camp. After World War II, Mengel disappeared in his hometown of German-US, and reappeared in South America a few years later. He is said to be active in Paraguay. He is the most "popular" fugitive in the world. There's a $4 million reward for catching him.