In the final months of World War II, American leaders were already thinking ahead to the next war: The Cold War. In anticipation, U.S. officials secretly agreed to bring nazis to the U.S. to work on the space program and act as spies against the Soviet Union. But as many as 10,000 other Nazis who weren’t part of the initiative also emigrated. Meanwhile, Jewish refugees of the holocaust weren’t as readily welcomed. This history is told in a new book, and we discuss it with the author.