[1/2] Participants gather near a screen showing Russian President Vladimir Putin, who delivers a speech at the St. Petersburg International Economic Forum (SPIEF) in Saint Petersburg, Russia June 17, 2022. REUTERS/Anton Vaganov/File Photo MOSCOW, June 3 (Reuters) - The Kremlin said on Saturday that journalists from "unfriendly countries" would not be allowed into the St Petersburg International Economic Forum, which President Vladimir Putin has used to showcase the Russian economy to global investors. The forum in St Petersburg, the former imperial capital built by Tsar Peter the Great 300 years ago as a "window" to Europe, has been held since...