The joint statements call for a solution to "all existing problems" VIENNA, February 19. /TASS/. The permanent representatives of Russia, China and Iran to international organizations in Vienna met with International Atomic Energy Agency (IAEA) Director-General Rafael Grossi to discuss Iran, and handed over their joint statements on the issue to him. Russian Permanent Representative to International Organizations in Vienna Mikhail Ulyanov said the statements underscore the need for a diplomatic