Moreover, many object to the export of weapons including hand-held machine guns and grenades by leading economic nations to lesser developed nations. Some, like SIPRI, have voiced special concern that artificial intelligence, molecular engineering, genetics and proteomics have even more vast destructive potential. Thus there is intersection between peace movement elements and Neo-Luddites or primitivism, but also with the more mainstream technology critics such as the Green parties, Greenpeace and the ecology movement they are part of.