Russian President Vladimir Putin listens as chemist, academician of the Russian Academy of Sciences, head of the centre of dual technologies "Soyuz" Yuri Milekhin, awarded with the Russian Hero of Labour medal, speaks during a ceremony at the Moscow Kremlin to present the Russian Hero of Labour gold medals and national awards in the fields of science and technology, literature and art, humanitarian efforts, charity and human rights advocacy for the previous year on Russia Day, in Moscow, Russia.