Kirill Dmitriev noted that Russia-US dialogue is vital for the world, as only jointly with Russia can global energy security be restored and ensured MOSCOW, March 9. /TASS/. Maintaining the global energy security is possible only if negotiations between Russia and the United States are taking place, Special Presidential Representative for Investment and Economic Cooperation with Foreign Countries and Head of the Russian Direct Investment Fund (RDIF) Kirill Dmitriev said. "Russia-US dialogue is