WHAT IS OPERATION PROJECT PAPERCLIP? Project Paperclip was a project by the U.S. government in during and after World War 2 in which the U.S. government took Nazi scientists to the U.S. for further studies and developement of mind control tactics and technologies. What the Nazi scientists and the U.S. government created eventually became the next project MK-ULTRA. Here is a good link about the subject: Project Paperclip